Find the sum of all three-digit natural numbers, which are divisible by 7.

How many three digit natural numbers are divisible by 4?

Find the number of three-digit numbers which are divisible by 5 and have distinct digits

Identify the following sets as null set or singleton set. B = The set of all even natural numbers which are not divisible by 2.

Find the sum all natural numbers between 300 and 600 which are divisible by 7 .

How many two digit natural numbers are divisible by 5?

Find the sum of first 123 even natural number.

How many three-digit numbers are divisible by 7?

Find the sum of all natural numbers between 602 and 902 which are not divisible by 4.