Question
Sanya can finish a task by herself in 20 days, while when
working together, Riya and Sanya can complete the same task in 10 days. Riya starts the work alone but leaves after 6 days, after which Sanya completes the remaining work on her own. If the total payment for completing the work under this arrangement is Rs. 6,000, how much of this amount does Riya receive?Solution
ATQ;
Let the total work = L.C.M of 20 and 10 = 20 units
Then, efficiency of 'Sanya' alone = 20 ÷ 20 = 1 unit/day
Combined efficiency of 'Riya' and 'Sanya' = 20 ÷ 10 = 2 units/day
So, efficiency of 'Riya' alone = 2 - 1 = 1 unit/day
Work done by 'Riya' alone in 6 days = 1 × 6 = 6 units
So, payment received by 'Riya' = (6/20) × 6000 = Rs. 1,800
What is the retirement age for the CJI ( Chief Justice of India)?
Which of the following countries did India beat in the final to win the 2021 SAFF Championship?
Who recently became the first bowler to take a six - for in the Women's Premier League ( WPL ) ?
As per the biennial 'India State of Forest Report (ISFR) 2019, in terms of forest cover as a percentage of total geographical area, which of the followi...
Who was appointed as the 24th Chief of Naval Staff in May 2019?
Which of the following nations assumed the Chairmanship of the Council of Regional Anti-Terrorist Structure of Shanghai Cooperation Organization (RATS ...
In which district of Maharashtra is Ralegan Siddhi, a small village that has become an example for watershed development, situated?
Whose autobiography is titled 'Waiting for a Visa'?
Which of the following is a non-conventional source of energy?
Pradhan Mantri Shram Yogi Maan-dhan (PM-SYM) Yojana which was launched on 5th March 2019 is aimed at benefitting: