A number consists of two digits and the digit in the ten's place exceeds that in the unit's place by 5. If 5 times the sum of the digits be subtracted from the number, the digits of the number are reversed. Then the sum of the digits of the number is:

If 40% of a number is equal to 3 / 5th of another number, what will be the ratio of the first number and the second number?

The difference between the average of squares of the last four numbers and the product of the first two numbers of 6 consecutive odd numbers is 114. Find the first number.

When 3738, 5659 and 9501 are divided by the greatest possible number x, the remainder in each case is y. What is the sum of x and y?

Sum of two numbers is 15 and sum of their reciprocals is . The two numbers are

Let x be the least number of 4 digit that when divided by 2, 3, 4, 5, 6 and 7 leaves a remainder of 1 in each case. If x lies between 2000 and 2500, then what is the sum of the digits of x?

The least number, which must be added to 6709 to make it exactly divisible by 9, is 

Direction : What value should come in the place of question mark (?) in the following questions?