Question

Alvin's age is three times Elga's age. The sum of their ages is 72. What is Elga's age?

Answer 1

Answer:

Alvin 46, Elga 23.

Step-by-step explanation:

.

Answer 2

Let Elga = x
Alvin = 3x
They add to 72
x + 3x = 72
4x = 72, x = 18
Since Elga = x, we know Elga = 18

Solution: she is 18