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인기 있는 Word Problems >

Jack is 7 times as old as his brother Jacob. Next year she will only be 5 times as old as him. How old is Jacob now?

해법

J a c k i s 7 t im es a s o l d a s hi s b ro t h er J a co b . N e x t ye a r s h e w i ll o n l y b e 5 t im es a s o l d a s him . Ho w o l d i s J a co b n o w ?

해법

Jacob^{'} s age is : 2

솔루션 단계

Translate the problem into an equation:

7 x + 1 = 5 (x + 1)

x

해결 대상

, 7 x + 1 = 5 (x + 1) : x = 2

Jacob^{'} s age is : 2

인기 있는 예

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