Between 11 and 21: 12, 14, 15, 16, 18 and 20.
Chat with our AI personalities
It is 16. This is because there are five numbers between 11 and 16, and there are five numbers between 16 and 21 :]
21 and 22 are consecutive composite numbers.
20, 22, 24, 25, 26, 28, and 30
=== ===
A number is divisible by 7 if it is a multiple of 7, so to figure it out, start listing multiples of 7. 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, ... On this list there are 11 numbers that are between 11 and 90. The answer is 11 numbers between 11 and 90 are divisible by 7.