Mohit and Rohit undertook a work for Rs. 4400. Mohit alone can do that work in 10 days and Rohit alone can do the same work in 15 days. If they work together, then what will be the difference in the amount they receive?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Rs. 880.
Mohit’s 1 day work = 1/10
Rohit’s 1 day work = 1/15
LCM of 10 and 15 = 30 (assume total work = 30 units)
Mohit’s efficiency = 30/10 = 3 units/day
Rohit’s efficiency = 30/15 = 2 units/day
Total = 3 + 2 = 5 units/day
Mohit’s share = (3/5) × 4400 = Rs. 2640
Rohit’s share = (2/5) × 4400 = Rs. 1760
Difference = 2640 - 1760 = Rs. 880