A is inversely proportional to square of B whereas directly proportional to C. Value of A was 27 when value of B was 4 and value of C was 6. Find the value of A when value of B will be 3 and value of C will be 8.

How many numbers are there from 500 to 650 (including both) which are neither divisible by 3 nor by 7?

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

283 ÷25x4 + 186 = ? 

Direction : What should come in place of the question (?) in the following question.

√(?) + 15² = 235

Two number 11284 and 7655, when divided by a certain number of three digits, leaves the same remainder. The sum of digits of such a three - digits number is: 

Let x be the least number divisible by 13, such that when x is divided by 4, 5, 6, 7, 8 and 12, the remainder in each case is 2. The sum of the digits of x is:

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

The sum of three numbers is 252. If the first number is thrice the second and third number is two-third of the first, then the second number is