Question
A work can be completed by ‘A’ and ‘B’, alone in
20 days and 10 days, respectively. Find the number of days taken by ‘C’ to complete the same work alone if ‘A’, ‘B’ and ‘C’ together can complete the whole work in 5 days.Solution
Let total work = 20 units (LCM of 20 and 10) Efficiency of ‘A’ = (20/20) = 1 units/day Efficiency of ‘B’ = (20/10) = 2 units/day Combined efficiency of ‘A’, ‘B’ and ‘C’ = (20/5) = 4 units/day Efficiency of ‘C’ = 4 – (1 + 2) = 1 units/day Required time taken = (20/1) = 20 days
The state flower of Haryana is ______.
Who is the author of the book “New Wealth of Nations”?
The capital of Kenya is -
What is NABARD’s full form?
A sum of Rs. 2000 was invested at a rate of 10% interest. The compound interest was calculated at an interval of every six months. What will be the net ...
Where was the ‘Rapid Trident’ joint military exercise among Ukraine, US and NATO (North Atlantic Treaty Organization) nations held?
Which initiative was highlighted at the 4th RE-Invest Summit to showcase investment opportunities in green energy?
Which ministry is responsible for the SVAMITVA scheme in India?
Identify the founding members of the Swaraj Party. Which of these leaders was NOT among them?
Select the incorrect statement based on the data in the Economic Survey 2022-23 -
