How many numbers between 11 and 90 are divisible by 7?
10
11
12
7
Divisible by ‘7’ means the number = 7k (for k = 1, 2, 3 …)
Now between 11 and 90 means
K = 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
Total values = 11