App Logo

No.1 PSC Learning App

1M+ Downloads
A, B and C contract to do a work for Rs. 4200. A can do the work in 6 days, B in 10 days and C in 12 days. If they work together to do the work, what is the share of C (in Rs.)?

A1000

B2000

C1500

D1200

Answer:

A. 1000

Read Explanation:

Total work = LCM of 6, 10, 12 = 60 Efficiency of A = 60 /6 = 10 Efficiency of B = 60/10 = 6 Efficiency of C = 60 /12 = 5 Efficiency of all together = 10 + 6 + 5 = 21 Share of C = (4200×5)/ 21 = Rs. 1000


Related Questions:

A man running at a speed of 15 km/hr crosses a bridge in 3 minutes. What is the length of the bridge?
Two pipes A and B can fill a tank in 20 hours and 24 hours respectively. If the two pipes opened at 5 in the morning, then at what time the pipe A should be closed to completely fill the tank exactly at 5 in the evening?
A and B can do a piece of work in 28 days and 35 days, respectively. They work on alternate days starting with A till the work gets completed. How long (in days) would it take A and B to complete the work?
Isha can do a certain piece of work in 20 days. Isha and Smriti can together do the same work in 16 days, and Isha, Smriti and Ashlesha can do the same work together in 8 days. In how many days can Isha and Ashlesha do the same work?
A and B undertake to complete a piece of work for ₹600. A alone can complete it in 4 days while B alone can complete it in 6 days. With the help of C, they finish the work in 2 days. Find the share of C in the payment received.