A) 54 days
B) 42 days
C) 56 days
D) 46 days
E) None of these
Correct Answer: E
Solution :
Quicker Approach \[{{M}_{1}}{{D}_{1}}={{M}_{2}}{{D}_{2}}\] \[\Rightarrow 20\times 36=15\times {{D}_{2}}\] \[\Rightarrow {{D}_{2}}=\frac{20\times 36}{15}=48\,\,days\]
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