比30米多50%是( )米?

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比30米多50%是( )米?
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比30米多50%是( )米?
比30米多50%是( )米?

比30米多50%是( )米?
30X50%+30=45

30乘以百分之150得45米

60

30*(1+50%)= 30*1.5 = 45(米)

(x-30)/x=1/2;x=60