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受欢迎的 Word Problems >

Eunice is 16 years older than her sister.In 4 years time,Eunice will be three times as old as her sister.What are their current ages

解答

E u ni ce i s 16 ye a rs o l d er t han h er s i s t er . I n 4 ye a rs t im e, E u ni ce w i ll b e t h ree t im es a s o l d a s h er s i s t er . Wha t a re t h e i r c u rre n t a g es

解答

Eunice^{'} s age is : 20

Sister^{'} s age is : 4

求解步骤

Translate the problem into an equation:

x + 4 = 3 (x - 16 + 4)

求解

x, x + 4 = 3 (x - 16 + 4) : x = 20

找到 age

Eunice^{'} s age is : 20

Sister^{'} s age is : 4

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