Find the maximum value of 16Cx for any natural number x.
6
4
7
8
Maximum value of 16CX occurs when x = 16/2 = 8
If x denotes the digit at hundreds place of the number ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯67 x 19 such that the number is divisible by 11. Find possible values of x.
log2 2a3−b3=61 (where a and b are consecutive natural numbers and a greater than b ) , then the value of a is