Question: how many numbers between 10 and 100 are divisible by 11?
Answer: 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100. So there are 19 numbers between 10 to 100 (including 10 & 100) which are divisible by 5.