Question

The sum of Lisa’s age and Myra’s age is 40. In 10 years, Lisa will be 3 times as old as Myra. How old is each person now?

Answer 1

Answer: 40

Explanation:

Answer 2

40

Explanation:

Let x=how old Myra is.

3x + 10 = x

x + 3x + 10 = 40

4x + 10 = 40

4x = 40 - 10

4x = 30

x = 30/4

x = 7.5

3x + 10= 32.5

x + 3x + 10= 40

7.5 + 32.5 = 40

40 = 40