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

Get unlimited access to the best preparation resource for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.

## Question 46

Aptitude

Edit

### Write in Short

Short Answer▾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?

### Choices

Choice (4) | |
---|---|

a. | 14 |

b. | 11 |

c. | 2 |

d. | 12 |

### Answer

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

### 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