# Sample Questions for Mathematical Ability

- Which number should come next in this series?
- 46
- 52
- 50
- 56
- Which number should replace the question mark "?"
- 4
- 5
- 6
- 7
- If 10 people can do a piece of work in 5 days, working 2 hours a day, how long will 2 people take to do the same work, working 5 hours a day?
- 8
- 5
- 10
- 12

Explanation: Beginning with 3, each number in the series is a square of the succeeding no. plus 1.

3^2 +1 = 10

4^2 +1 = 17

5^2 +1 = 26

6^2 +1 = 37

7^2 +1 = 50 (missing no.)

17 | 8 | 5 | 5 |

13 | 7 | 5 | 4 |

6 | 12 | 6 | 3 |

10 | 6 | 4 | ? |

Explanation: For each row the sum of the first two columns is equal to the multiple of the last two columns

Explanation: People 1 / ( no. of days x time in hours)

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