# Aptitude [TCS Placement]: Sample Questions 46 - 48 of 174

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## Question 46

Aptitude
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### Write in Short

A finish the work in 10 days. B is 60 % efficient than A. So how many days does B take to finish the work?

### Explanation

• A can finish his work in 10 days.
• B is 60 % more efficient than A, so B will take 60 % less time than A to finish the work.
• 60 % of 10 days =

= 6

• So, B will take 6 days less than A to finish the same work.
• So, B will take days to finish the work.

## Question 47

Aptitude

### Question

MCQ▾

Last year Pandit was thrice his sister՚s age. Next year he is only twice her age. After 5 years what is Pandit՚s age?

Choice (4)

a.

14

b.

11

c.

2

d.

12

d.

### Explanation

• Let present age of Pandit and his sister be p and s years respectively.
• Next year Pandit is twice of his sister՚s age.

• Last year Pandit was thrice his sister՚s age.

• From equation (i) ,

• Substituting this value of p in equation (ii) ,

• From ,
• Pandit՚s present age,

• After 5 years, Pandit՚s age =

## Question 48

Aptitude
Edit

### Write in Short

Complete the series 7, 9,13 , ________, 27,37

### Explanation

• First term of the series is 7.
• Second term of the series is 9, i.e.. Difference between first and second term is + 2.
• Third term of the series is 13, Difference between second and third term is + 4.
• Fourth term needs to be find out.
• Fifth term of the series is 27.
• Sixth term of the series is 37, i.e.. Difference between sixth and seventh term is + 10.
• Here, difference between two consecutive terms is increasing by factor of two.
• So, difference between third and fourth term should be + 6.
• Missing term will be

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