Question
Amisha is 50% more efficient than Khushi. Amisha started
a work, worked for 'w' days and then Khushi replaced Amisha. khushi completed the remaining work in (w + 12) days. The ratio of the work done by Amisha and khushi is 3:4. In how many days can Amisha and Khushi together can complete the whole work?Solution
ATQ, Let us assume that khushi alone can complete the work in 'k' days khushi one day work is (1/k) Amisha one day work is = (150/100) × (1/k) = (3/2k) w(3/2k) + (w + 12) (1/k) = 1.......(1) (3w/2k) : (w + 12)/k = 3:4...........(2) From (1) and (2) we will get w = 12, and k = 42 so Amisha can complete the work in 28 days and khushi in 42 days. (1/28) + (1/42) = (5/84) or (84/5) or 16(4/5)
Who has been awarded with the Ezhuthachan award 2022?
Agricultural labour productivity is maximum in?
In which year did the Battle of Plassey take place?
Tarun Vijay, the Chairman of National Monuments Authority, declared Mangarh hillock as Monument of National Importance, which belongs to the state?
What was the primary purpose of the Business Payment Solution Provider (BPSP) when it was launched in 2017?
In the 1909 Indian Council Act, what was the increased maximum number of additional members for the council of Bengal?
Which city of Uttar Pradesh has got the World Guinness record for lighting four lakh diyas?
What is the new transaction limit for UPI 123Pay users?
The Indian state with the largest coal reserves is.
When is World Unani day celebrated every year?
Relevant for Exams:
