The least number that must be subtracted from 1294 so that the remaining number when divided by 9, 11, 13 will leave in each case the same remainder 6 is:

If the fractions $$ {9\over11}$$, $$ {7\over9}$$, $$ {5\over6}$$ and $$ {11\over13}$$ are arranged in ascending order, which one will be the fourth?

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?

Find the sum of 30²+31²+32²+________+80²

The difference between the greatest and the least four-digit numbers that begins with 3 and ends with 5 is: 

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

23 × 45 ÷ 15=?

Sum of two numbers is 15 and sum of their reciprocals is $$ {15\over56}$$. The two numbers are

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: