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Dimple

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Punjab

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Maths Quotes

Mathematics is one word which is useful in every bits of our life,whether we have to put one step or to think anything.

Md.Intshamuddin

" MATHEMATICS can be your best friend if you will use it frequently but it can be your worst enemy if you will neglect using it daily."

Elmor Earl F.Leonor

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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

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(3 years ago) "Other"

When you keep believing, keep trying and keep doing... Someday, you will succeed.

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(3 years ago) "Other"

Find the elements in the relation "have the same remainder when divided by 8" if the
relation is defined on {1, 2, 3 .... 24, 25}. Also, find the distinct equivalence classes
of this equivalence relation.

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(3 years ago) "Other"

the average number of people visitedredfort on every day is 2240.but 2200 on every saturday, 3000 on sunday and on wednesday it is 1500people visited . what is the average number of people visited on remaining days in the ,month of december when there are 4 thursdays abd 4 mondays in the month?

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(3 years ago)

Average Visited in December = 2240
Then total visitors = 2240*31 = 69440
As there are 4 Thursdays and 4 Mondays the other 3 are Sunday,Friday and Saturday. It means 5 Sundays 5 Fridays and 5 Saturdays
It means 5*2240+5*2200+5*3000=11200+11000+15000=37200
Remaining=69440-37200=32240
Average of remaining=32240/16=2015
So Average =2015

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(3 years ago) "Other"

help me for placements

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(3 years ago)

please give more details ?

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(3 years ago) "Other"

hero
ajjjjjjjjjjjjjjjjjjjjj,,,pckkk

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(3 years ago) "Other"

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

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(3 years ago) "Other"

Mr. Thomas invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?

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(3 years ago) "Other"

Long ago a princess wanted

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(3 years ago) "Other"

during a period of decline in a stock market prices a stock sold at ₹50/share on the first day,₹40/share on the second day and ₹25 on the third day.If a invester bought 100,120&180 shares on the respective 3 days the average price paid per share will be?.

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(3 years ago)

Avg. Price = (100*50 + 120*40 + 180*25) / (100+120+180) = 35.75

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(3 years ago) "Other"

Help me to get score in tcs nqt 2021

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(3 years ago) "Other"

On Feb 18 I have TCS NQT can some one help me friends

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(3 years ago) "Other"

A man sets out by cycle from Delhi to Rohtak, and at the same time another man starts from Rohtak by cycle to Delhi. After passing each other they complete their journeys in 3 1/3and 4 4/5 hours respectively. At what rates does the second
man cycle if the first cycles at 8 km per hour?

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(3 years ago)

Let A and B are the persons.
A travelled x km,B travelled y km before they meet.
Time taken for A and B to reach their destinations are 10/3h,24/5h
Speeds are y/(10/3),x/(24/5)
At the time they meet they travelled same time => x/(3y/10)=y/5x/24)
10x/3y = 24y/5x=>50x^2=72y^2
=>x^2/y^2=72/50
x/y=√(1.44)=1.2
=>x=1.2y
Total distance =(x+y)=(x+x/1.2)=2.2x/1.2=11x/6
Now time taken for B=(11x/6)/(5x/24)
=11*24/6*5=44/5=8h 48m

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(3 years ago) "Other"

ORDER RESEARCH CHEMICALS FROM https://www.highgradeschemicals.com/

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

(3 years ago) "Other"

If the sum of the first 43 terms of an arithmetic progression is 2967, then find the sum of the 11th and the 33rd terms of the same series.

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(3 years ago)

First term = a, Number of terms=n, Difference = d
nth term = a+(n-1)d
11th term = a+10d, 33rd term = a+32d
Sum of 11th & 33rd= 2a+42d = 2(a+21d)=2(22nd term)

Middle term = Total sum/n
43/2 th term = 22nd term = 2967/43 = 69

=>Sum of 11th & 33rd = 2(69) = 138

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(3 years ago)

Sum of first 43 terms in A.P=43(2a+42d)/2=2967
11th term +33rd terms =(a+10d)+(a+32d)=(2a+42d)
43(2a+42d)/2=2967=>(2a+42d)=2967*2/43=138

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(3 years ago) "Other"

solution of quastion

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(3 years ago) "Other"

Keshav runs a factory of 210 employes in each 3 shift 80 emp are required no one is allowed to work more than 16 hrsin a day how many emp are required to work 16 hrs in a day

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(3 years ago)

80*3 = 240 employees needed
We have 210
So 240-210 = 30 employees need to work double shift
Cross check: 180*8+30*16=1920 hours
240*8 = 1920 hours
So 30 is the answer

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(3 years ago) "Other"

We know that the vertices of a quadrilateralare 2, 3, 5, and 6 cm, respectively,from a point P. What is the largest possible area of this quadrilateral?

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(3 years ago)

Lets divide the area into 4 triangles
Area of triangle = 1/2 * base * height
So total area for right angle triangles are:
0.5*(2*3+3*5+5*6+6*2) = 31.5cm^2
If we diminish or expand any of the portions we eventually fall into same bucket I guess, so I think 31.5cm^2 should be the answer, all suggestions are welcome. Thanks.

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(3 years ago) "Other"

give me apportunity

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(3 years ago)

What exactly apportunity means? Can you be more specific?

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(4 years ago) "Other"

Twenty five sets of problems on Data Interpretation– one each for the DI sections of 25
CATALYST tests were prepared by the AMS research team. The DI section of each CATALYST
contained 50 questions of which exactly 35 questions were unique, i.e. they had not been used in
the DI section of any of the other 24 CATALYSTs. What could be the maximum possible number
of questions prepared for the DI sections of all the 25 CATALYSTs put together?
(Can anyone help by explaining the solution to this question)

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(3 years ago)

Let me try to understand the question:
25 set of papers
50 in each with 35 distinct questions
Did I understand the question correctly?

If yes, the answer is: 35*25 = 875 questions.

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(4 years ago) "Other"

Why 0!=1 ?
Please help me

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(4 years ago)

n! = n*(n-1)!
1! = 1*(1-1)!
1! = 1*0!
As 1! = 1, hence 0! = 1

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(3 years ago)

We know that n! = n(n-1)(n-2)(n-3).....3(2)(1) which means that
n! = n(n-1)!
Dividing both sides of the equation by n, we have
(n - 1)! = n!/n
Using this fact, we can check the following pattern.
4! = 5!/5 = {(5)(4)(3)(2)(1)}/5 = 24
3! = 4!/4 = {(4)(3)(2)(1)}/4 = 6
2! = 3!/3 = {(3)(2)(1)}/3 = 2
1! = 2!/2 = {(2)(1)}/2=1

Now, we go to 0!
0! = 1!/1 = 1

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(4 years ago) "Other"

Like and subscribe my Youtube channel
Asif Iqbal
Maths class 10th and 9th Lectures
https://youtu.be/s7qPmsPs5bA

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(4 years ago) "Other"

Ten years ago,the average of family of four members was 24 years.Three children having been born,the average age of family is same today.What are the present ages of children if two children are identically twins and differ by two years from the younger one?

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(4 years ago)

24×4 =96 + 4×10 = 136
current age = 24×7 = 168
hence children age = 32
2A + A - 2 = 32
A = 34/3 = 11.33 not possible
data is wrong as child can not be older than 10 years

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(4 years ago) "Other"

hi ,my self Ritik Rathore want to place in a core organisation of civil engineering and groom my self .

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(4 years ago) "Other"

Hi, my name is Alister james lives in Delhi and doing my education in creativethinksmedia want to become an engineer.

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(4 years ago) "Other"

hello my name in vuresakunthala iam teacher in private school now free because corona holidays now i need job at home any on help me thq

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(4 years ago) "Other"

here are 20 balls which are red, blue or green. If 7 balls are green and the sum of red balls and green balls is less than 13, at most how many red balls are there?

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(4 years ago)

7 balls are green
sum of red balls and green balls is less than 13
7 + R < 13
=> R < 6
Hence at most 5 red balls are there

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(4 years ago) "Other"

if the tank is half fulled and set X and set Y are closed how many minutes will it take for set Z to empty the tank if alternate taps of set Z are closed

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(4 years ago)

X, Y & Z details missing

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(4 years ago) "Other"

The number of 5-digit numbers that can be formed from 4,2,0,7 and 3

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(4 years ago)

5! is the answer

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(4 years ago)

4*5*5*5*5 bcoz 0 cant be at first place

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(4 years ago)

Assuming repetition allowed - 1st Digit can be in 4 ways - Rest 4 can be in ways Hence 4*5*5*5*5 = 2500
Assuming repetition mot allowed = 4*4! = 4 * 24 = 96

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(4 years ago) "Other"

What is the referral code

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(4 years ago) "Other"

please help me in tcs nqt 2021

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(4 years ago) "Other"

got placed in infosys

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(4 years ago) "Other"

Three marketers distribute their products in a colony for pilot testing. Marketer A distributes
150 Items to the people equally and then was left with a few items. Marketer B distributes 270
Items to the people equally and then was left with the same number of Items as the number left
with Marketer A. Marketer C distributes 320 items to the people and is left with the same
number of items as the number left with Marketer A. What is the maximum possible number of
people in the colony?

Reply Like? Yes (1) | No

(4 years ago)

Let q are the no of people
150=aq+r----(1)
270=bq+r----(2)
320=cq+r-----(3)
Eqn. 2 -1=q(b-a)=120
Eqn.3-2=q(c-b)=50
Eqn.3-1=q(c-a)=170
H.c.f of all these is 10
Hence the members are 10.

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(4 years ago) "Other"

A ball is dropped from a height of 144 m and it rebounds to two thirds of the height from which it falls. if it continues to rebound, what distance will the ball have travelled before coming to rest?

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to (4 years ago) "Other"

hey surbhi
how u get placed

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to (4 years ago) "Other"

oh gosh,
are u placed in the company?
if not leave it.
and if yes then please let me know how u get placed?

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(4 years ago) "Other"

2 7 19 62 493...next no?

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(4 years ago) "Other"

Important Math questions and it's solutions.

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(4 years ago) "Other"

How would you dynamically allocate a one-dimensional and
two-dimensional array of integers?

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(4 years ago)

Use loops to iterate through array
And use available random generator functions to allocate any value, dynamically if you are getting values from any where that will work.
Please give more information if you are looking for anything else.

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(4 years ago) "Other"

Adarsh is preparing for a competitive exam. During his practice for the same, he comes across a sample paper which contains 12 yes/no type questions and 12 multiple choice questions, each with four possible answers. In how many distinct ways can Ankit solve the paper?

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(4 years ago)

244,672,066 ways
Yesno can be answered in 3 ways -> YesNoNone
Similarly MCQ can be answered in 5 ways
= (3^12)+(5^12)

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(4 years ago)

@varun - both need to be multiplied rather than addition.

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to (4 years ago) "Other"

Can please share any resource to learn quantitative aptitude or anything regarding maths please, I want to learn

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(4 years ago)

We can find many question and answers in the website by browsing, example at: https://m4maths.com/placement-puzzles.php?SOURCE=maths
You can try to solve the unsolved one as well which helps in learning

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(4 years ago) "Other"

Which of the following statements is/are true about locks in database management’?
1. Livelock and Deadlock are same.
2. Phase Locking has 2 stages namely- Expanding phase and Contracting phase.
3. Read Lock can be assigned to inﬁnite transactions simultaneously.

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to (4 years ago) "Other"

hi mam i had doudt about probability that sum of two dice are thrown, but sum o two dice are divisble by 4 and 6..i know the answewr is 7/18..
i need the clear explanation, means in a logical way
by adding all the sequence i get 16/36 means 8/18
sum of them are 1,3 /3,1/2,2/ and 1,5/2,4/3,3/4,2/5,1/4 and
these are the only combination i get 4 and 6 by adding of two dice
explain me in soon at email rahimkhan341341@gmail.comeven u
thnaking you.. not only her even u can also share the answer at email..

Reply Like? Yes | No

(2 years ago)

Condition should be.... Sum of two dice is divisible by 4 or 6.
Possible sums are 4,6,8,12.
Possible combinations to meet given conditions = 14
So probability =14/36= 7/18

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(4 years ago) "Other"

consider expression (3+x+x^2x^3x^4)^4=p0+P1x+p2x^2+.....P16x^16. Find value of p0+p1+p15+p16

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(4 years ago) "Other"

find the grammatical error i was so surprised that(b) i told me i was imagining things (c) but later others confirmed that they too had seen the same sight

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(4 years ago)

I said I was imagining things

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(4 years ago) "Other"

In how many ways one or more than one fruit, can be selected from 6 varieties of fruits given that there are 5 fruits of each variety?

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(4 years ago)

(1) Lets just first select from 1 variety,
In 5 ways one or more of same variety can be picked {1,2,3,4,5}
We have 6 such varieties

(2) Now lets go to second variety,
Additionally,
Picking from second variety can be done in 6 ways including picking zero {0,1,2,3,4,5,6}
And we have 5 such extra varieties
= 5*6*6*5 = 900

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(4 years ago) "Other"

Two articles A and B, with the same marked price were sold at 15% and 12% discounts respectively. Percentage of the profit earned on articles A and B was 6.25% and 20% respectively. The cost price of article B was Rs.160 less than the cost price of article A. Find the marked price of the each article.

Reply Like? Yes | No

(4 years ago)

Let the CP of A=x+160 and B=x. Marked Price of A and B=P.
Then, SP of A = P*85/100 = (106.25/100)* (x+160) ---> 17P = (x+160)*21.25 ---(i)
SP of B = P*88/100 = (120/100)*x ---> 11P = 15x ---(ii)
Solving (i) & (ii), we get Marked Price = P=2400 and CP of B=x=1760, CP of A=(x+160)=1920

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(4 years ago) "Other"

how many three digits numbers can be formed using 2,3,4and5 with digits being repeated?

Reply Like? Yes (2) | No

(4 years ago)

Unit place has a choice of 4 numbers
Similarly tens,hundredth place has a choice of 4 numbers each
= 4*4*4 = 64

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(4 years ago) "Other"

3) What will be the output of the following pseudocode?
For input a = 8 & b = 9.
Function(input a, input b)
If(a < b)
return function(b, a)
elseif(b != 0)
return (a + function(a,b-1))
else
return 0

a) 56
b) 78
c) 72
d) 68

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(4 years ago)

The answer is option (c) , i.e , 72

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(4 years ago) "Other"

Hi, looking for feedback regarding the following question:
There are 500 candies. If 350 have sprinkles and 300 have chocolate chips, and at least 60 have neither sprinkles nor chocolate chips, the number of candies that have both is in this range:
a)40 and 120
b)80 and 180
c)180 and 320
d)210 and 300
e)300 and 350
This question is from this site and I've also placed my reasoning/solution for it.
Any help will be most appreciated.
Joy

Reply Like? Yes | No

(4 years ago)

It is 210 and 300
Total candies 500
Out of these candies with both maximum is 300. Since chocklet chips is subset to sprinkles.
60 is neither of them. So either of them are 500-60=440
Now minimum =350+300-440=210
So it will be 210 and 300

Like? Yes (2) | No

(4 years ago) "Other"

Today is my first day on this site. and I m very excited about learning and also join this site. I hope I do really well and got a placement.

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