How many numbers between - 11 and 11 are multiples of 2 or 3?

How many numbers between 11 and 111 are the multiples of both 2 and 5?

5x2 a multiple of 11 ?

How many natural numbers from 1 to 900 are not multiples of any of the numbers 2, 3 and 5?

How many numbers between 99 to 999 which are divisible by 11.

How many numbers lie between 100 and 10000 which when successive divided by 7, 11 and 13 leaves the respective remainders of 5,6 and 7 ?

Insert 10 rational numbers between -3 /11 and 13/11