40 men can build a wall 200 m long in 12 days working 8 hrs a day. The number of days 30 men will take to build a similar wall 300 m l ong worki ng 6 hrs a day wil l be –



[ A ]    36 days
[ B ]    9 days
[ C ]    32 days right
[ D ]    18 days
Answer : Option C
Explanation :

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