The correct option is
B 17
We know that counting is easier when large number of quantities are arranged in proper order.When the given numbers are arranged in increasing order, it becomes easy to count the numbers between 50 and 100. The increasing order of the given numbers is given below:
The numbers between 50 and 100 are: 53, 59, 60, 63, 66, 67, 72, 78, 80, 81, 82, 87, 88, 92, 93, 94 and 95.
∴ there are 17 numbers that lie between 50 and 100.