The number which can be written in the form of n (n+1) (n+2), where n is a natural number, is: 

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

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

23 × 45 ÷ 15=?

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:

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:

The average of five natural numbers is p. If the next three numbers are included then how much the average of these 8 numbers exceeds than the average p?

What value will come in place of question mark (?) in the questions given below?

663.48 + 22.51 - 292.63 = ? + 300.44