A) 16
B) 20
C) 18
D) None of these
Correct Answer: C
Solution :
Remaining work \[=1-\frac{2}{5}=\frac{3}{5},\] Remaining days \[=48-24=24\] \[\therefore \] \[\frac{{{M}_{1}}{{D}_{2}}}{{{W}_{2}}}=\frac{{{M}_{2}}{{D}_{2}}}{{{W}_{2}}}\] \[\Rightarrow \] \[\frac{36\times 24}{\frac{2}{5}}=\frac{{{M}_{2}}\times 24}{\frac{3}{5}}\] \[\Rightarrow \] \[{{M}_{2}}\times 24\times 2=3\times 36\times 24\] \[\Rightarrow \] \[{{M}_{2}}=\frac{3\times 36\times 24}{24\times 2}=54\] Additional men \[=54-36=18\]
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