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Phổ biến Word Problems >

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

T y l er i s nin e ye a rs o l d er t han hi s s i s t er T ina . Tw e l v e ye a rs a g o, T y l er w a s f o u r t im es a s o l d a s T ina . F in d t h e i r a g es n o w .

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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