# Numbers Questions

A) 32761 | B) 42437 |

C) 81225 | D) 20164 |

Explanation:

The square of a natural number never ends in 7.

42437 is not the square of a natural number

A) 4 | B) 3 |

C) 2 | D) 1 |

Explanation:

6)4456(742

42

--------

25

24

-------

16

12

-----

4

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Required number = (6-4) = 2.

A) 3 | B) 2 |

C) 1 | D) 0 |

Explanation:

Let n=4*q + 3. Then, 2*n = 8*q + 6 = 4(2*q + 1) + 2.

Thus when 2*n is divided by 4, the reminder is 2.

A) 1155 | B) 1145 |

C) 1040 | D) None |

Explanation:

The weight will be 250g plus (1.55 - 0.65)/0.10 units of 100g

250 + 900 = 1150

This is the maximum weight that can be sent at that price. But, weights exceeding

250 + 800 will also get charged this amount (that is what the ‘part thereof’ implies).

Hence a package weighing 1145 will be charged $1145

A) 2 | B) 1 |

C) 3 | D) 7 |

Explanation:

Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = ( 22 + x ),which must be divisible by 3.

Whe x=2. [(22 + 2) = 24 is divisible by 3] Answer is 2