单选题Two teenagers can paint a garage in 6 hours. How many hours would it take 3 teenagers to paint the same garage?A3/2B5/2C8/3D3E4
单选题
Two teenagers can paint a garage in 6 hours. How many hours would it take 3 teenagers to paint the same garage?
A
3/2
B
5/2
C
8/3
D
3
E
4
参考解析
解析：
Let x represent the time three teenagers take to paint a garage, then. 3x=2×6. x=12/3, x=4.
Let x represent the time three teenagers take to paint a garage, then. 3x=2×6. x=12/3, x=4.
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