Question

There is a number that if you subtract 6 from it first, and then divide that total by 3, you get 5, What is the number?

Answer 1

21

Explanation:

This problem can be solved using inverse of the operations given. To do so, we can start from the end to the beginning.

We start with 5 and multiply(inverse of division) by 3.

Now, we have 15. The inverse of subtraction is addition so we add 6 to 15 which is 21.

Answer 2

21

Explanation:

because 21-6 = 15,

15÷3 = 5