Question

A positive number is five times another number. If 21 is added to both the number then one of new number becomes thrice the other new number. What are the numbers.

Answer 1

Let the number be x

Then the other number will be 5x

After adding 21,

x+21 and 5x+21

According to the question,

=x+21=3(5x+21)

=x=-3