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Phổ biến >

Tyler is nine years older than his sister Tina. Twelve years ago, Tyler was four times as old as Tina. Find their ages now.

Lời Giải

Tyler is nine years older than his sister Tina. Twelve years ago, Tyler was four times as old as Tina. Find their ages now.

Lời Giải

Tyler^{'} s age is : 24

Tina^{'} s age is : 15

Các bước giải pháp

Translate the problem into an equation:

x - 12 = 4 (x - 9 - 12)

Giải

x, x - 12 = 4 (x - 9 - 12) : x = 24

Tìm age

Tyler^{'} s age is : 24

Tina^{'} s age is : 15

Ví dụ phổ biến

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