A) 67
B) 75
C) 81
D) 84
Correct Answer: B
Solution :
[b] More men (M) less number of days [d] or \[M\propto \frac{1}{D}\] or MD = constant \[\therefore \,\,\,{{M}_{1}}{{D}_{1}}={{M}_{2}}{{D}_{2}}\] or \[42\times 25={{M}_{2}}\times 14\] or \[{{M}_{2}}=75\]You need to login to perform this action.
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