Kamal can do a work in 15 days. Bimal is 50% more efficient then Kamal. The number of days, Bimal will take to do the same piece of work, is = ?
A. $$7\frac{1}{2}$$
B. 10
C. 12
D. 14
Answer: Option B
Solution(By Examveda Team)
Ratio of times taken by Kamal and Bimal$$\eqalign{ & = 150:100 \cr & = 3:2 \cr} $$
Suppose Bimal takes x days to do the work
$$\eqalign{ & \Rightarrow 3:2::15:x \cr & \Rightarrow x = \left( {\frac{{2 \times 15}}{3}} \right) \cr & \Rightarrow x = 10{\text{ days}}{\text{.}} \cr} $$
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