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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


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