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1. If 20 men can build a wall 56m long in 6 days,what length of a similar wall can be built by 35men in 3 days? |
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Answer» Let the required length be x meters More men, More length built (Direct proportion) Less days, Less length built (Direct Proportion) Men20:35 }Days6 : 3 } ⋮⋮ 56 :x => (20 x 6 x X)=(35 x 3 x 56) => x = 49 Hence, the required length is 49 m. (20×6× X)=(35×3×56)=49how will come |
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