Mr Hall is 2 years older than Mr Risebrough. If 10 years ago the sum of their ages was 52, how old are they

해법

M r H a ll i s 2 ye a rs o l d er t han M r R i se b ro ug h . I f 10 ye a rs a g o t h e s u m o f t h e i r a g es w a s 52, h o w o l d a re t h ey

Hall^{'} s age is : 37

Risebrough^{'} s age is : 35

솔루션 단계

Translate the problem into an equation:

x - 10 + x - 2 - 10 = 52

x

해결 대상

, x - 10 + x - 2 - 10 = 52 : x = 37

age 찾다

Hall^{'} s age is : 37

Risebrough^{'} s age is : 35