Question : Rani can do the work alone in 10 days, Priya can do the same work alone in 12 days and Guddu can do the same work alone in 15 days. If they do that work together and they are paid INR 6000, then what is the share of Priya?
Option 1: INR 2500
Option 2: INR 1600
Option 3: INR 1800
Option 4: INR 2000
Correct Answer: INR 2000
Solution :
Since the efficiency is inversely proportional to the time taken.
The ratio of efficiencies of Rani, Priya, and Guddu $=\frac{1}{10}:\frac{1}{12}:\frac{1}{15} = 6:5:4$
So, the share of Priya = $\frac{5}{15}$ × 6000 = INR 2000
Hence, the correct answer is INR 2000.
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