Find the value of x for which the value of 16Cx is maximum for any natural number x.
Soln: Maximum value of 16Cx occurs when x = 162 = 8.
Hence option (d)
Find the maximum value of 16Cx for any natural number x.
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.
If x is a digit of the number ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯66784x such that it is divisible by 9, find the possible values of x.