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Question : J1 can do a piece of work alone in 10 days, J2 can do the same work alone in 12 days, while J3 can do it alone in 15 days. They work together and complete the work, and receive a total of INR 2,250 for doing the work. What is the difference in the shares of Jand J3?

Option 1: INR 450

Option 2: INR 400

Option 3: INR 300

Option 4: INR 350


Team Careers360 10th Jan, 2024
Answer (1)
Team Careers360 12th Jan, 2024

Correct Answer: INR 300


Solution : LCM of 10. 12 and 15 is 60
Total work = 60
Efficiency of J1 = $\frac{60}{10}=6$
Efficiency of J2 = $\frac{60}{12}=5$
Efficiency of J3 = $\frac{60}{15}=4$
The ratio of their efficiencies = 6 : 5 : 4
Amount received = INR 2250
Share of J1 = $\frac{2250}{15}\times6=900$
Share of J2 = $\frac{2250}{15}\times5=750$
Share of J3 = $\frac{2250}{15}\times4=600$
The difference in the shares of Jand J3 = 900 – 600 = 300
Hence, the correct answer is INR 300.

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