Users Discussion Board

Neha PARMAR 8 Days ago

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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AMIT GARG 4 Days 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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priyanshu mandil 1 Month ago

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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AMIT GARG 3 Days ago

X, Y & Z details missing

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Bargavi 1 Month ago

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

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kishor 1 Month ago

5! is the answer

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tej 1 Month ago

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

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AMIT GARG 3 Days 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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YUVANSANKAR 1 Month ago

What is the referral code

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ansh 1 Month ago

please help me in tcs nqt 2021

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ragavan 1 Month ago

got placed in infosys

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lakshmi 1 Month ago

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

G.S.Kantharao 1 Month 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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meenakshi 1 Month ago

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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raju bhatia to Surbhi patel 1 Month ago

hey surbhi
how u get placed

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raju bhatia to yumnam girish 1 Month ago

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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satyasundar mallick 1 Month ago

2 7 19 62 493...next no?

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Sambhunath Mohanta 1 Month ago

Important Math questions and it's solutions.

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VEMIREDDY HEMANTH KUMAR REDDY 2 Months ago

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

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Varun 1 Month 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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Gauthamkumar S 2 Months ago

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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Varun 1 Month 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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AMIT GARG 3 Days ago

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

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krisha kumar to Varun 2 Months ago

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

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Varun 2 Months 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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Srinivasa Raju Rudraraju 2 Months ago

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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