# TCS Papers: Sample Questions 36 - 37 of 502

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## Question number: 36

» Aptitude

Short Answer Question▾

### Write in Short

A can copy 50 papers in 10 hours while both A & B can copy 70 papers in 10 hours. Then for how many hours required for B to copy 26 papers?

### Explanation

- In 10 hours A can copy 50 papers, then in 1 hour A can copy 5 papers.
- In 10 hours A and B together can copy 70 papers, then in 1 hour they can copy 7 papers.
- We have to find how many papers B can copy in one hour.
- Let B can copy x number of papers in one hour.

=

x =

- In one hour B can copy 2 papers.
- 2 papers can be copied by B in one hour
- Then, 26 papers can be copied by B in (? ) hours

=

= 13 hours

- B can copy 26 papers in 13 hours time.

## Question number: 37

» Aptitude

Short Answer Question▾

### Write in Short

There are three different boxes A, B and C. Difference between weights of A and B is 3 kgs. And between B and C is 5 kgs. Then what is the maximum sum of the differences of all possible combinations when two boxes are taken each time?

### Explanation

- Let the weight of box A is x kg, weight of B is y kg and weight of C is z kg.
- Difference between weights of A and B is 3 kg, i. e.
- Difference between weights of B and C is 5 kg, i. e.
- We are asked to find the maximum sum of differences of all possible combinations when two boxes are taken each time.
- From equation (i),
- From equation (ii),
- Comparing both the equations,

- Maximum sum of differences of all possible combinations