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PRABHAT KUMAR

India

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Maths Quotes

every maths problem has 108 types solution.

Rakshith Shetty...

There is something I don't understand about algebra: It has been around for thousands of years, yet no one has ever found out what the value of "x" or "y" really is.

Richard van der Merwe

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M4Math helped me a lot.

Vipul Chavan 1 year ago

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

yash mittal 2 years ago

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(6 Days ago) "Other"

Hanson Bhaskar have salaries that jointly amount to 10000 per month they spend the same amount monthly and then it is found that the ratio of their savings is 621 which of the following can be considered salary

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(1 Month ago) "Other"

When processing flower-nectar into honeybees’ extract, a considerable amount of water gets reduced. How much flower-nectar must be processed to yield 1kg of honey, if nectar contains 50% water and the honey obtained from this nectar contains 15% water?

Reply Like? Yes (2) | No

(1 Month ago) "Other"

If you place 9 at the left end of a five-digit number you will get a six-digit number. This six-digit number is four-times
the six-digit number that you get when you put 9 at the right end of the original five-digit number. What is the sum of
the digits of the five-digit number?

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(1 Month ago)

Sum of their digits is 18

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(1 Month ago)

G.S.Kantharao 28 Seconds ago
[G.S.Kantharao]
Your number is 23076.
If you place 9 on left side=923076
If you place 9 on right side =230769
923076=4*230769.
Sum of their digits is 2+3+0+7+6=18

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(1 Month ago) "Other"

I am Prashant Yadav

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(1 Month ago) "Other"

How to select TCS guide me

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(2 Months ago) "Other"

For puzzle dated 22.11.2021, I have given answera as option 8 which is displayed correctly in home page.
But -1 points are given. please check.

I think other members may be getting same response .

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(3 Months ago) "Other"

Sunil completes a work in 4 days whereas Dinesh completes the work in 6 days.Ramesh works 1(1)/(2) times as fast as Sunil.How many days it will take for the three together to complete the work?

Reply Like? Yes | No

(3 Months ago)

24/19 days

1 day work of Sunil=1/4, Dinesh=1/6 and Ramesh=(3/2)*(1/4)=3/8
In 1 day, together all 3 can complete 1/4 + 1/6 + 3/8 = 19/24
So, the work will be completed in 24/19 or 1 (5/19) days.

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(3 Months ago) "Other"

chairis code as hcari, then shame is code as

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(3 Months ago) "Other"

Dashin bank all choth

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(3 Months ago) "Other"

Dashim bank 1 ermja kedami

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(4 Months ago) "Other"

The number of 5-digit odd numbers that can be made from number 12345 are

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(3 Months ago)

To get odd numbers, digit at unit place must be 1, 3 or 5.
When 1 is at unit place, total 5 digit numbers = 4 x 3 x 2 = 24
When 3 is at unit place, total 5 digit numbers = 4 x 3 x 2 = 24
Similarly, for 5 at unit place, total 5 digit numbers = 4 x 3 x 2 = 24
Therefore, Total 5-digit odd numbers = 24 + 24 + 24 = 72

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(3 Months ago)

Total 5-digited numbers=5!=120
Numbers which ends with 2 or 4=2*4!=48
Number of odds formed =120-48=72

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(4 Months ago) "Other"

I wish this the best platform for growing skills up

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(4 Months ago) "Other"

main()
{
char s[ ]="man";
int i;
for(i=0;s[ i ];i++)
printf("n%c%c%c%c",s[ i ],*(s+i),*(i+s),i[s]);

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(4 Months ago) "Other"

What is the similarity between the following pairs?
1. 12 & 21
2. 13 & 31
3. 102 & 201

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(3 Months ago)

12 reverse order 21
13 reverse order 31
102 reverse order 201

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(4 Months ago) "Other"

one of the value of x in log(x+7)(36x+9)=2

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(5 Months ago) "Other"

University of Vikram has enrolled nine Phd candidates.Babu Chitra,Dheeraj , Eesha,Farooq,Gowri , Hameed,Iqbal,Jacob.
-Farooq and Iqbal were enrolled on the same day as each other, and no one else was enrolled that day.
-Chitra and gowri were enrolled on the same day as each other, and no one else was enrolled that day.
-On each of the other days of hiring , exactly one candidate was enrolled.
-Eesha was enrolled before Babu.
-Hameed was enrolled before Dheeraj
-Dheeraj was enrolled after Iqbal but before Eesha
- Gowri was enrolled after both Jacob and Babu
-Babu was enrolled before Jacob
Who were the last two candidates to be enrolled?

Reply Like? Yes (1) | No

(5 Months ago) "Other"

I just like MATH.

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to (5 Months ago) "Other"

If WAIT + ALL = GIFTS; Then what is the value of G+I+F+T? (If A =6 & S=5)

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(5 Months ago)

9 6 0 8
+ 6 7 7
---------
10285
=> W=9, A=6, I=0, T=8, L=7, S=5, G=1, F=2, T=8
So, G+I+F+T=1+0+2+8=11

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(5 Months ago) "Other"

Amcat preparations papers

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(6 Months ago) "Other"

5, 12, 28.8, 69.12, 165.88, 398.13, ? , 2293.23.
Find the missing number

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(6 Months ago)

Answer : 955.512

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(5 Months ago)

398.13 x 2.4= 955.512

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(5 Months ago)

5,12,28.8,69.12,165.88,398.13,?,2293.33
The series is in G.P
5,5(2.4),5(2.4^2),5(2.4^3),......
Now the 7th term=ar^(7-1)
=5*2.4^6=955.512

Like? Yes (3) | No

(6 Months ago) "Other"

New Public School has a circular layout. The school has teachers specializing in various subjects. All

classrooms of the school are equally spaced apart and located along its perimeter. Each teacher needs

to take 4 classes in a day. There is a strange rule. The first and last class has to be in the same class

roun. The other two classes have to be at two other distinct class rooms.

Ram is a math teacher. He never teaches two successive classes at two adjacent classrooms. How many distinct trips to class rooms are possible for Ram if there are 9 class rooms in the school?

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(6 Months ago)

In a day
First & last room should be same
Let's choose it arbitrarily, next class can be chosen in 6 ways
Because same room cannot be chosen & neighboring rooms are also not allowed
Round represntations of class: 1 2 3 4 5 6 7 8 9. 1....

Let first one be 1
Then second can be 3 4 5 6 7 8
For 3, third class can be any of 5 6 7 8
For 4, third class can be any of 2 6 7 8 9
For 5, third class can be any of 2 3 7 8 9
For 6, third class can be any of 2 3 4 8 9
For 7, third class can be any of 2 3 4 5 9
For 8, third class can be any of 2 3 4 5 6
For 9, third class can be any of 2 3 4 5 6 7
And fourth class will be again 1

So total possible classes keeping first class constant is: (4)+(5*5)+(6) = 35

Similarly first class can be changed in 9 ways => Total possible trips per day = 9*35 = 315

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to (7 Months ago) "Other"

sir please guide me how to solve

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(7 Months ago) "Other"

Please check puzzle dated 14.06.2021

If the capacity of a cylindrical tank is 4004 m^3 and the diameter of its base is 14 m, then find the depth of the tank?

Solution given is
Let the depth of the tank be h meter
πr²h = 4004
h = 4004/ πr²
h = (4004 x 7/22 x 1/14)
h = 91 m.

I think admin has considered 2r =14 only in place of r^2 ( 7^2).

It should be

Let the depth of the tank be h meter
πr²h = 4004
h = 4004/ πr²
h = (4004 x 7/22 x 1/49)
h = 26 m.

Please check and do justice to maths.

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(7 Months ago) "Other"

Identify which security threat can occur because of typing error on the network site

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(7 Months ago)

Typosquatting attack

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(7 Months ago) "Other"

Amansells12candiesforRs.12&losesRs.2.40.Ifhesells12candiesforRs.16,howmuch
doeshegainorlose?
a.GainsRs.4
b.LosesRs.6
c.GainsRs.6.40
d.LosesRs.1.60
e.GainsRs.1.60

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(7 Months ago)

For 12 candies, when SP=Rs 12, Loss is Rs 2.4 , So CP=12+2.4=Rs 14.4
Hence Gain, when he sells 12 candies for Rs 16 = SP - CP = 16 - 14.4 =Rs 1.6
Option e)

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(8 Months ago) "Other"

f I sell two articles, one at 20% profit for Rs.100 and the other at 20% loss for Rs.100, what is my net profit/loss?

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(8 Months ago)

CP = 83.33+125 = Rs. 208.33
Loss = Rs. 8.33

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(8 Months ago) "Other"

Dear Admin,
Is there any chance of fair evaluation of scores or results are pre-decided to give prizes to a few privileged members ?

Reply Like? Yes (1) | No

(8 Months ago)

No chance. I think Admin team is working from home. :)

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(8 Months ago) "Other"

In today's puzzle dated 5-5-21, I have answered option 5 as answer which is shown as 5 in my home page of m4maths. But marks given are -1 .
Please check.

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(8 Months ago) "Other"

With 4/5 Full Tank

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(8 Months ago) "Other"

In today's puzzle dated 5-5-21, I have answered option 5 as answer which is shown as 5 in my home page of m4maths. But marks given are -1 .
Please check.

Reply Like? Yes (2) | No

(8 Months ago)

If admin is not ready to check and take corrective action for yesterday puzzle , it is better to stay away from today's puzzle as a mark of protest.

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(9 Months ago) "Other"

20 people going to one temple,they want rs 20.for men rs 3,women rs 2,children 50 paisa,how much money spent for men,women,children?

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(9 Months ago)

Let men,Women are =x,y respectively
Then children are =(20-x-y)
Then amount=
3x+2y+(20-x-y)/2=20
6x+4y-x-y=20
5x+3y=20
For the Natural Numbers N (x,y)=(1,5)
So men =1
Women =5
Children =14
Expenditure=1*3+5*2+14*0.5=20

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to (9 Months ago) "Other"

A train passes a standing man 11.3 seconds and passes a bridge of length 396m in 18 seconds .the speed of the train is

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(9 Months ago)

Let the speed of the train be x m/sec and length of the train be y m, then y/x=11.3 or y - 11.3x = 0 --(i)
Also, (y + Length of platform)/x=18
(y+396)/x=18 => 18x-y=396 ---(ii)
Solving (i) & (ii), we get, x=59.10 and y=667.88
Hence speed of the train is 59.10 m/s

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(9 Months ago) "Other"

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

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(9 Months 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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(10 Months 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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(10 Months 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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(10 Months ago) "Other"

help me for placements

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(10 Months ago)

please give more details ?

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(10 Months ago) "Other"

hero
ajjjjjjjjjjjjjjjjjjjjj,,,pckkk

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(10 Months ago) "Other"

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

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(10 Months 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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(11 Months ago) "Other"

Long ago a princess wanted

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(11 Months 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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(10 Months ago)

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

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(11 Months ago) "Other"

Help me to get score in tcs nqt 2021

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(11 Months ago) "Other"

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

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(11 Months 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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(11 Months 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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(1 year ago) "Other"

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

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

(1 year 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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(11 Months 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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(11 Months 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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(1 year ago) "Other"

solution of quastion

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(1 year 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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(1 year 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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(1 year 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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(1 year 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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(1 year ago) "Other"

give me apportunity

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(1 year ago)

What exactly apportunity means? Can you be more specific?

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