## Series 4

Congratulations - you have completed

*Series 4*. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%
Your answers are highlighted below.

Question 1 |

**How many prime numbers are less than 50 ?**

16 | |

15 | |

14 | |

18 |

Question 2 |

**Which of the following is a prime number?**

33 | |

81 | |

93 | |

97 |

Question 3 |

**Which one of the following in not a prime number?**

31 | |

61 | |

71 | |

91 |

Question 4 |

**Which one of the following is a prime number?**

161 | |

221 | |

373 | |

437 | |

none of these |

Question 5 |

**Which one of the following is a prime number ?**

119 | |

187 | |

247 | |

551 | |

none of these |

Question 6 |

**The smallest 3-digit prime number is:**

103 | |

107 | |

109 | |

113 | |

none of these |

Question 7 |

**If a and b are odd numbers, then which of the following is even ?**

a + b | |

a + b + 1 | |

ab | |

ab + 2 | |

none of these |

Question 8 |

**Which one of the following cannot be the square of a natural number ?**

32761 | |

81225 | |

42437 | |

20164 | |

none of these |

Question 9 |

**What smallest number should be added to 4456 so that the sum is completely divisible by 6 ?**

4 | |

3 | |

2 | |

1 | |

none of these |

Question 10 |

**Which natural number is nearest to 9217, which is completely divisible by 88 ?**

9152 | |

9240 | |

9064 | |

9184 | |

none of these |

Question 11 |

**Which natural number is nearest to 8458, which is completely divisible by 75 ?**

8475 | |

8500 | |

8550 | |

8525 | |

none of these |

Question 12 |

**The largest 4-digit number exactly divisible by 88 is**

9944 | |

9768 | |

9988 | |

8888 | |

none of these |

Question 13 |

**The largest 5-digit number exactly divisible by 91 is**

99921 | |

99918 | |

99981 | |

99971 | |

none of these |

Question 14 |

**What least number must be subtracted from 13601, so that the remainder is divisible by 87 ?**

23 | |

31 | |

29 | |

37 | |

49 |

Question 15 |

**What least number must be added to 1056, so that the sum is completely divisible by 23 ?**

2 | |

3 | |

18 | |

21 | |

none of these |

Once you are finished, click the button below. Any items you have not completed will be marked incorrect.

There are 15 questions to complete.

List |

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