If 72 men can build a wall of 280m length in 21 days, how many men could take 18 days to build a similar type of wall of length 100m?   - Study24x7
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If 72 men can build a wall of 280m length in 21 days, how many men could take 18 days to build a similar type of wall of length 100m?  

A

30

B

10

C

18

D

28

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