A) 12
B) 16
C) 17
D) 18
Correct Answer: A
Solution :
Work done\[=\frac{5}{8}\]. Balance work\[=\left( 1-\frac{5}{8} \right)=\frac{3}{8}\] Less work, less days Let the required number of days be\[x\]. Then, \[\frac{5}{8}:\frac{3}{8}::20:x\Leftrightarrow \frac{5}{8}x=\frac{3}{8}\times 20\Rightarrow 5x=60;x=12.\]You need to login to perform this action.
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