Carl is twice as old as Rita. Meg is 5 years older than Carl. If their combined age is 155 years, how old is Meg?

解

C a r l i s tw i ce a s o l d a s R i t a . M e g i s 5 ye a rs o l d er t han C a r l . I f t h e i r co mbin e d a g e i s 155 ye a rs, h o w o l d i s M e g ?

Meg^{'} s age is : 65

解答ステップ

Translate the problem into an equation:

x + \frac{x}{2} + x + 5 = 155

x

を解く

x + \frac{x}{2} + x + 5 = 155 : x = 60

発見する Meg's age

: 65

Meg^{'} s age is : 65