Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will b

游客2023-10-14 12

问题 Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will be 3/4 of Jane’s age. How old is Jane now?

选项

答案 12 years old

解析设Jane现在是x岁，Sam现在是y岁，根据题意可得下列议程式：x-4=2 (y-4)；3/4(x+4)=y+4得x=12，所以Jane现在是12岁。

转载请注明原文地址:https://tihaiku.com/zcyy/3096151.html

相关试题推荐

随机试题

最新回复(0)

Whowastoblameaccordingtothewoman?[br][originaltext]M:Gosh,there’sa