Joan is 3 times as old as Martha, and Pia is three years younger than Martha. If the sum of all their ages 3 years ago was 63, what are their ages now?

Решение

Решение

Martha^{'} s age is : 15

Joan^{'} s age is : 45

Pia^{'} s age is : 12

Шаги решения

Translate the problem into an equation:

3 x - 3 + x - 3 + x - 3 - 3 = 63

Решите для

x, 3 x - 3 + x - 3 + x - 3 - 3 = 63 : x = 15

Найдите age

Martha^{'} s age is : 15

Joan^{'} s age is : 45

Pia^{'} s age is : 12

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