Manish can do a piece of work in 7 days while Anil can do the same piece of work in 6 days. The wage for full work is Rs. 390, If they both work together to complete the work, then find the earnings of Manish.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. Rs.180.
Manish can do a piece of work in 7 days while Anil can do the same piece of work in 6 days
L.C.M(7 and 6) = 42
The efficiency of Manish = 42/7 = 6 units
The efficiency of Anil = 42/6 = 7 units
⇒ 6x + 7x = Rs.390
⇒ 13x = 390
⇒ x = 30
Earning of Manish = 6x = Rs.180