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Evaluate 743 x 999 ? |

A) 724457 B) 784527 C) 742257 D) 74257 Correct Answer : 742257 Explanation :743 × 999 |

How many three digit numbers are divisible by 5? |

A) 200 B) 180 C) 175 D) 10 Correct Answer : 180 Explanation :smallest 3 digit number divisible by 5 is first term, a =100 AP(Arithmetic Progression) So , the three digits number which is divisible by 5 is 180 |

X is a whole number. If the only common factors of X and X2 are 1 and X, then X is _______? |

A) 1
B) a perfect square
C) an odd number
D) a prime number
Correct Answer : a prime number Explanation :A number that is divisible only by itself and 1 is called prime number. |