If  n is a  natural number , then the largest number dividing ( n³ – n ) is :

A , B , C , D are four consecutive odd integers and their average is 42. what is the product of  B  and D ?

By how much is  \(\frac{3}{4}\)^th      of 52 lesser than \(\frac{2}{3}\) ^th      of 99 ?

1. The difference between \(\frac{3}{5}\)^th of \(\frac{2}{3}\)^rd of a number and  \(\frac{2}{5}\)^th of   \(\frac{1}{4}\)^th of the same number is 288 . What is the number ? 

If the difference between the reciprocal of a positive proper fraction and the fraction itself be   \(\frac{9}{20}\), the fraction is :

The smallest 3- digit prime numbers is :

1. The difference between the squares of two consecutive even integers is always divisible by :

The difference between the squares of two consecutive odd integers is always divisible by :

1. In a division sum , the divisor is ten times the quotient and five times the remainder . If the remainder is 46 , the dividend is :

1. The difference of two numbers  is 1365. on dividing the larger number by the smaller , we get 6 as quotient and 15 as remainder . The smaller  number is :