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Dimple

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Punjab

Time: 00:01:33

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Maths Quotes

Small minds discuss persons. Average minds discuss events. Great minds discuss ideas. Really great minds discuss mathematics.

Anon

When I fill, I am alone & a lot of haze in my life. I close myself in a room with a mathematics book. It fills a thrill in my mind..!

Ravi Ranjan Ojha

Placed User Comments

M4Math helped me a lot.

Vipul Chavan 4 years ago

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.

yash mittal 5 years ago

Public Wall |

(8 years ago) "Other"

.HCF of 2472, 1284& 3rd number N is 12.if LCM of these three no’s is 2^3*3^2*5^1*103*107,then N?

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(8 years ago) "Other"

. Anushka has a jewel chest containing Rings, Pins and Ear-rings. The chest contains 26 pieces. Anushka has 2 1/2 times as many ringsas pins, and the number of pairs of ear rings is 4 less than the number ofrings. How many earrings does Anushka have

Reply Like? Yes (1) | No

(8 years ago)

Pins=10,rings=10 earrings=6

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(8 years ago) "Other"

How many members are there between 1 to 100 which are divisible by 9 and the sum of two digits is 9?

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(8 years ago)

there are 10 nos. divisible by 9 and their sum is also 9 between 1 to 100

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(8 years ago) "Other"

sansi drives along the primeter of square field of side 10 kms.she drives along the first side at 10 kmph,along the second side at 20 kmph ,,along the third side at 30kmph ,,along the fourth side at 2kmph ,
her average speed is?

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to (8 years ago) "Other"

GREAT VISHWA !! DID IT IN 49 SECS ONLY.

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(8 years ago)

HI...BROTHER... MAY I KNOW...HOW COULD YOU SOLVE PROBLEM 47 SECONDS?

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(8 years ago) "Other"

16-5=10
Any one solve this...plz

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(8 years ago) "Other"

sanju puts equal amounts of money, one at 10% per annum compound interest payable half yearly and the second at a certain percent per annum compound interest payable yearly. if he gets equal amounts after 3 years, what is the value of second percent

Reply Like? Yes (1) | No

(8 years ago) "Other"

Sixteen teams have been invited to participate in the ABC Gold Cup cricket tournament. The tournament is conducted in two stages. In the first stage, the teams are divided into two groups. Each group consists of eight teams, with each team playing every other team in its group exactly once. At the end of the first stage, the top four teams from each group advance to the second stage while the rest are eliminated. The second stage comprises of several rounds. A round involves one match for each team. The winner of a match in a round advances to the next round, while the loser is eliminated; the team that remains undefeated in the second stage is declared the winner and claims the Gold Cup. The tournament rules are such that each match results in a winner and a loser with no possibility of a tie. In the first stage a team earns one point for each win and no points for a loss. At the end of the first stage teams in each group are ranked on the basis of total points to determine the qualifiers advancing to the next stage. Ties are resolved by a series of complex tie-breaking rules so that exactly four teams from each group advance to the next stage.
What is the total number of matches played in the tournament?
What is the highest number of wins for a team in the first stage in spite of which it would be eliminated at the end of first stage?

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(8 years ago)

59 matches were played.

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to (8 years ago) "Other"

What will be the value of the expression a8/3 * a-6/9 ?

Reply Like? Yes (7) | No

(8 years ago) "Other"

Two pipes a and b separately fill in 15/2 min and 5 min respactively and third pipe c can empty of 14l/m if all the pipes are open when the cistern is full, it is emptied in 1 hr. how many litres does the cistern hold?

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(8 years ago) "Other"

on Tuesday college parking place have only 4wheelers & bicycles,total no of wheels was 182,yhen what is the possible no of bicycles?

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(8 years ago)

4X+2Y=182
2X+Y=91
so possible no. of bycycles will be (1,11,21,31,41,51,61,71,81)

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(8 years ago)

4 wheeler 30,,bicycle=31,now accoing to option keep on decreasing 4wheeler by 1 and increasing bicycle by 2

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(8 years ago)

no unique answer. Multiple answers are possible.
start with 1 bicycle and 45 four wheelers.
...... 3 bicycles and 44 four wheelers

keep on adding 2 cycles and reducing one 4 wheeler every time
till you get
91 bicycles and zero 4 wheelers.

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(8 years ago) "Other"

rahul and raghu are 110 km apart from each other and they started horse riding towards each other at same time at speed of 20km/h and 24km/h respectively.after how many hours of riding will they be a distance of 22 km.

Reply Like? Yes (1) | No

(8 years ago)

they will travel only (110-22=98km)
nd relative speed=20+24=44km/h
so total time they will take to cover distance=98/44=2.23h(approximate)

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(8 years ago) "Other"

The cash price of a television is Rs. 4022. A customer paid Rs. 1500 in cash and promised to pay the remaining money in 3 monthly equal instalments at the rate of 5% per annum compound interest. What is the value of each instalment?
Option 1 : Rs. 926.10 Option 2 : Rs. 903.33 Option 3 : Rs. 928.30 Option 4 : Rs. 940.50

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(8 years ago) "Other"

Smita and Deepika took part in a 10m race in the year 2009 in which deepika win.So she decided to improve and ratio of her speed in the 2008 to 2009 is 5:6 and in the year 2009 to 2010 is 5:6.What is the percentge change in her speed from 2008 to 2010 ?

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(8 years ago)

44%
ratio of her speed in the 2008 to 2010 is 25:36
as
ratio of her speed in the 2008 : 2009: 2010 is 25:30:36.

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(8 years ago) "Other"

A sum of money is borrowed and paid back in two annual instalments of Rs. 882 each allowing 5% C.I. The sum borrowed was:

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(8 years ago) "Other"

A student has got marks in five subjects in the ratio 2:3:4:5:6 .The maximum marks of subjects in same sequence are in ratio 6:5:8:4:7.Total percentage of marks scored by him is 48%.FInd the maximum percentage obtained by him in a subject shortcut for this question
?

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(8 years ago) "Other"

What is the remainder when 7700 is divided by 100

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(8 years ago)

7700 = 77*100

hence 7700 will be divide by 100

and the remainder will be simply 0

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to (8 years ago) "Other"

We have Rs100 ,We should buy 100 things at Rs.5,Rs.0.75 paise,Rs.0.25 paise,How can we buy ?

Reply Like? Yes (1) | No

(8 years ago)

10 things of Rs 5 .... Rs 50
55 things of Rs 0.75 ... Rs. 41.25
35 things of Rs 0.25 .... Rs. 8.75

100 things for Rs 100.

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(8 years ago)

if DDMUQZM is coded as CENTRAL than RBDJK can be coded as

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to (8 years ago) "Other"

How do you say that x short be integer?

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(8 years ago) "Other"

a shopkeeper sold a certain no. of toys all ay a cetain price.the no. of toys that he sold is a three digit no.in which tens digit and units digit are same and are non-zero,and the price of each toy is a two-digit no. when expressed in rupees.by mistake he reversed the digits of both,the no. of items sold and the price of each item.in doing so,he found that his stock account at the end of the day showed 792 items more than what it actually was.if the faulty calculations show a total sale of rupees 5117,what was the actual selling price of each toy?

Reply Like? Yes (2) | No

(8 years ago) "Other"

There are two vessels one containing 12 litres of water, other 6 litres of wine. If a litre be taken out of each and poured into the other, and if this be repeated four times, find how much wine will be in contained one?

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(8 years ago) "Other"

Hi Admin Sir,
Puzzle of 4th August : I thought that both option A and B is correct so I marked none of these. Can you please explain how option A is invalid.

Best Regards,
Niraj Kumar

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(8 years ago) "Other"

a motorist travels x miles in y hours and z minutes. what is his average speed in miles per hour?

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(8 years ago)

Average Speed is = (x)/[(60y+z)/60]
= 60x/(60y+z)

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to (8 years ago) "Other"

Please send solution for 1st August problem

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(8 years ago)

16, 28, 48, 92), (63, 15, 29, 107), (46, 28, 36, .....)

16 + 28 + 48 = 92 (Sum of first three number = fourth number)
63 + 15 + 29 = 107
46 + 28 + 36 = (110)
sum of first 3 numbers is equal to fourth number

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to (8 years ago) "Other"

Hi ,
Can you please explain how you solved . Gunal is a strange liar. He lies on 6 days of the week but he tells the truth on the 7th day. Consider the following statements
Day 1: I lie on Monday and Tuesday
Day 2: Today is Thursday, Saturday or Sunday
Day 3: I lie on Wednesday and Friday
Which day does he speak the truth? question using truth table?

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to (8 years ago) "Other"

tell me procedure

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(8 years ago) "Other"

A trader wants 10% profit on the selling price of a product whereas his expenses amount to 15% on sales. What should his rate of mark up be on an article of Rs. 9?

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(8 years ago)

mark up prize =2.22
cost prize=9
selling prize=9+(15% of 9)
profit=selling prize+10% of 9

so total prize is 11.22
so, mark up prize =2.22

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(8 years ago) "Other"

Two friends bought two bicycles whose prices are in the ratio 1:5. If they sold them at the
loss of 10%, the difference of the money earned by them was Rs 3600. What is the cost price
of the costliest cycle?

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(8 years ago)

supose one friends cycle cost is X ,and the anothe friends cycle cost is Y
SO, we can write 5X=Y.................1

sold them at 10% loss so,
0.9Y-0.9X=3600
by equition no.1
4.5X-0.9X=3600
3.6X=3600
so,
X=1000 and Y=4500.

Like? Yes (3) | No

(8 years ago) "Other"

can anyone tell me how to prepare for TCS which is going to happen in at our college in the month of September what are the topics that I have to cover and can anyone tell where do I get the previous question papers of TCS and mainly how to access this m4maths website in a better way

Reply Like? Yes (1) | No

(8 years ago)

see, for the tcs mostly permutation and combination ,distance and time,lodical reasoning,english is most important.
For the paper contact FACE-(focuse accedemy for career enhancemnt)
you can get all the papers and detail about how prepare.....

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(8 years ago) "Other"

Anoop managed to draw 7 circles of equal radii with their centres on the diagonal of a square such that the two extreme circles touch two sides of the square and each middle circle touches two circles on either side. Find the ratio of the side of the square to radius to the circles. You may assume that square root of 2 is 1.4

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(8 years ago) "Other"

i need an puzzlesssssssssssssss

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(8 years ago) "Other"

Odd one out from a,b,c,d,e

Reply Like? Yes (2) | No

(8 years ago)

It is c. Because C only has two open ends.

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to (8 years ago) "Other"

Some prime numbers can be expressed as Sum of other consecutive prime numbers.
For example

5 = 2 + 3
17 = 2 + 3 + 5 + 7
41 = 2 + 3 + 5 + 7 + 11 + 13

Your task is to find out how many prime numbers which satisfy this property are present in the range 3 to N subject to a constraint that summation should always start with number 2.

Write code to find out number of prime numbers that satisfy the above mentioned property in a given range. please answer this question.

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(8 years ago) "Other"

work hard now enjoy your luck

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(8 years ago) "Other"

In how many possible ways can you write 3240 as a product of 3 positive integers a, b and c.

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(8 years ago) "Other"

in case of a circular shaft subjected to torque the value of sheer stress

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(8 years ago) "Other"

In which direction an array element has to shuffled for insertion and deletion ?

Reply

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(8 years ago) "Other"

If a shop owner offers 10% discount on a product and sold at rs 800/-.If he got 5% profit on it,then what is the profit without giving the discount?

Reply Like? Yes (4) | No

(8 years ago)

90*x/100=800; x=888.88(without giving discount which is nothing but selling price of the product),
he gets 5perct profit on 800
so, 105*x/100=800;
x=762rs (this is the cost prise of that product)
so,sp=888.88,cp=762;
profit earned without giving discount is
(888.88-762)*100/762 =16.65percnt profit he earned without giving the discount.

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(8 years ago) "Other"

4(x-1/x)^2+8(x+1/x)-29=0

Reply Like? Yes (2) | No

(8 years ago) "Other"

Income of A and B in the ratio of 3:4 monthly and its expenditure are 4:5 then the saving ration in the possible way is

a) 9:10
b) 3:4
c) 13:20
d) 4:5

Reply Like? Yes (2) | No

(8 years ago)

let us consider the income of A and B are 3x and 4x;
then the saving of A is 3x-(3x*4/9) =1.67x;
and for B is 4x-(4x*5/9) =1.78x;
so,the ratio is 167:178 (167/178=.93)
which approxly equals to 9:10 (9/10=.9).

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(8 years ago) "Other"

heyy I am new in this..i want to prepare for tech mahindra aptitude test..please help me how do i do it?

Reply Like? Yes (2) | No

(8 years ago)

Tech Mahindra mainly focus on verbal and in number series,profit &loss,speed&distance.so pls focus on these topics mainly and there is also sectional cut-off for each section.

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(8 years ago) "Other"

Mr.Duggal invested `20000 with rate of interest at 20 p.c.p.a. The interest was compounded half yearly for first year and in the next year it was compounded yearly. What will be the total interest earned at the end of two years?

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(8 years ago) "Other"

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(8 years ago) "Other"

4 6 12 18 30 42 60 72 ...... logic for the series

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(8 years ago)

Answer is :
4 (3&5 are prime numbers)
6 (5&7 are prime numbers)
12 (11&13 are prime numbers)
18 (17&19 are prime numbers)
30 (29&31 are prime numbers)
series continues

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(8 years ago) "Other"

I am EEE student how can I get a internship from electrical company plz anyone suggest me

Reply Like? Yes (1) | No (1)

(8 years ago) "Other"

i like tcs.i am eager to work

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(8 years ago)

So practice its questions from this site.

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to (8 years ago) "Other"

. .

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to (8 years ago) "Other"

can u please sir i m beginner for campus preparation how to prepare aptitude...pls help me out from this problem

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(8 years ago)

Practice aptitude from this site. Practice, practice and practice so that no company can reject you. Let it be any company apti read solution submitted by users of this site, this should help you.

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(8 years ago) "Other"

A fruit seller has 20kg of mangoes when he opened shop in the morning he sold 30/7kg before lunch and 80/13kg after lunch.how much was left in the evening.

Reply Like? Yes (1) | No

(8 years ago) "Other"

one trick to solve dice game

suppose there are two dice rolled together then what will be the probability of getting a number 6 as the sum that will be

possible chances = {(1,5),(2,4),(3,3),(4,2),(5,1)} =5
total chances =36
so probebility = 5/36

in the same way

for getting
1 0
2 1
3 2
4 3
5 4
6 5
7 7( now decreasing)
8 5
9 4
10 3
11 2
12 1

you can remember it by fallowing method

6=7
|
5=6 / 8=5
4=5 / 9=4
3=4 / 10=3
2=3 / 11=2
1=2 / 12=1
----------------------------------------

tnk u....

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(8 years ago) "Other"

7,5,7,13,29,?,232

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to (8 years ago) "Other"

concept A Milkman serves milk in packaged bottles of varied sizes. The possible size of the bottles are {1, 5, 7 and 10} litres. He wants to supply desired quantity using as less bottles as possible irrespective of the size. Your objective is to help him find the minimum number of bottles required to supply the given demand of milk. concept A Milkman serves milk in packaged bottles of varied sizes. The possible size of the bottles are {1, 5, 7 and 10} litres. He wants to supply desired quantity using as less bottles as possible irrespective of the size. Your objective is to help him find the minimum number of bottles required to supply the given demand of milk. concept A Milkman serves milk in packaged bottles of varied sizes. The possible size of the bottles are {1, 5, 7 and 10} litres. He wants to supply desired quantity using as less bottles as possible irrespective of the size. Your objective is to help him find the minimum number of bottles required to supply the given demand of milk.

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to (8 years ago) "Other"

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(8 years ago) "Other"

my elitmus Percentile is:

Verbal 69.32
Problem Solving 95.88
Quantitative 49.16

is there any chances by any companies?
please suggest me...

Reply Like? Yes (2) | No

(8 years ago) "Other"

At 6′o a clock ticks 6 times. The time between first and last ticks is 30 seconds. How long does it tick at 12′o clock

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(8 years ago) "Other"

Two cyclists begin training on an oval racecourse at the same time. The professional cyclist completes each lap in 4 minutes; the novice takes 6 minutes to complete each lap. How many minutes after the start will both cyclists pass at exactly the same spot where they began to cycle? plz answer this

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(8 years ago)

ans is 12 take lcm of the two 4 and 6

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(8 years ago)

after every interval of 4 mins novice will be on its starting position i.e. 4,8,12,16,20,24....
after every interval of 6 mins professional will be on its starting position i.e. 6,12,18,24.....
therefore they will be always meet each othrs at starting location after every 12 mins i.e. 12,24,36....

you can also take LCM of both and multiply it by
2 for first meeting
3 for second meeting
.
.
.
.
n+1 for nth meeting...

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(8 years ago) "Other"

In an examination

Reply Like? Yes (1) | No

(8 years ago) "Other"

My elitmus score is: Percentile
Quant- 75.11
P.S-85
Verbal-89.38
What are my chances?
Is this a good score?

Reply Like? Yes (1) | No

(8 years ago) "Other"

A travel agency has three kinds of vehicles 4 seater, 8 seater and 12 seater (all excluding the driver). In how many ways can 120 passengers be accommodated ensuring that no seat in any vehicle remains vacant? (1) 81 (2) 91 (3) 71 (4) 101 (5) None of these

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(8 years ago) "Other"

A books store offers a 10% discount on all the books sold plus an additional discount of 5% on the total bill. If the total bill after the initial discount is more than or equal to Rs. 1000. Dilshan bought 3 books worth Rs. 450 , Rs.520 and Rs. 250 respectively . How much money was Dilshan able to save as result of the various discounts offered by the store?
a. Rs. 120
b. Rs. 176.9
c. Rs. 61
d. Rs. 183
o None of the Above

Reply Like? Yes (1) | No

(8 years ago)

total cost of three books=450+520+250=1220
now , initial discount=1220*10/100=122
so, total=1220-122=1098>1000
therefore,additional discount =1098*5/100=54.9
=>total saving=122+54.9=176.9
b. Rs. 176.9

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(8 years ago) "Other"

The class Square is as follows:

using System.Collections.Generic;

internal class Square // version of 15-09-2015

{

private double m_Side;

private double m_PosX = 0;

private double m_PosY = 0;

public Square(double p_S)

{

m_Side = p_S;

}

public Square(Square p_Sq)

{

m_Side = p_Sq.p_Side;

}

public void SetPosition(double p_PX, double p_PY)

{

m_PosX = p_PX; m_PosY = p_PY;

}

public double GetSide()

{

return m_Side;

}

public static List PlaceInside(List p_Squares)

{

// YOUR CODE HERE

}

}

he method name and parameters are as follows:

public static List PlaceInside(List p_Squares)

The method PlaceInside gets a list of squares and returns them once inside each other with the same centre and placed so the biggest square lays on the X and Y axis (position of biggest = 0,0):

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(8 years ago) "Other"

optimize the code by applying the following logic.
The LCM for 2,3,4,5 and 6 is 60.This means that 61,121,181 etc. gives remainder 1, when divided by 2,3,4,5 and 6.You have to check whether 61,121,181 etc are now multipled. Display and mention the number of iterations needed to generate in the first case and last case

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(8 years ago) "Other"

Find last two digit of 1122^1122

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(8 years ago) "Other"

A biased die has a probability of 1/4 of showing a 5, while the probability of any of 1, 2, 3, 4, or 6

turning up is the same . If three such dice are rolled, what is the probability of getting a sum of atleast

14 without getting a 6 on any die ?

Reply Like? Yes (1) | No

(8 years ago)

in a throw of three dice total no of possible cases=6^3=216
now as 6 should not appear on any die and sum must be at least 14, therefore no of favourable cases=4
probability(getting 5)=1/4
suppose p(1 or 2 or 3 or 4 or 6)=x
since total probability of any sample space=1
so,p(1)+p(2)+p(3)+p(4)+p(5)+p(6)=1
x+x+x+x+1/4+x=1
=>5x=1-1/4
=>x=3/20
Now, p(getting sum 14 without 6 on any die)=(favourabale cases)/(total cases)
=4/216 = 1/54
Now, favourable cases are:
(5 4 5), (5 5 4), (5 5 5), (4 5 5)
therefore, required probability=1/54*{ ( p(5)*p(4)*p(5) )+( p(5)*p(5)*p(4) )+( p(5)*p(5)*p(5) )+( p(4)*p(5)*p(5) ) }
=>1/54*{ ( (1/4)*(3/20)*(1/4) ) + .....}
=>1/54*{ 3/320 + 3/320 + 1/64 + 3/320 }
=>1/54 * 14/320 = 7/8640 .

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to (8 years ago) "Other"