The east positive integer that should be subtracted from 3011 x 3012 so that the difference is a perfect square is-

Which of the following numbers is divisible by 25?

The least number that should be added to 2,397 so that the sum is exactly divisible by 3, 4, 5 and 6 ?

If two numbers are each divided by the same divisor, the remainders are respectively 3 and 4. If the sum of the two numbers be divided by the same divisor, the remainder is 2. The divisor is 

Directions: Find the wrong number in the following number series:

0.5, 2, 1, 4, 32, 512, 16384

In a class, there are ' z ' students. Out of them ‘x’ are boys. What part of the class is composed of girls? 

Find the greatest number which divides 108, 124 and 156, leaving the same remainder. 

When 1062, 1134 and 1182 are divided by the greatest number .x, the remainder in each case is y. What is the value of (x − y)?