Question
Rakshit, Ajay, and Satish are sanitation workers in a
Municipal Corporation. Rakshit alone takes 20 hours to clean a drain while Ajay takes 12 hours when working alone to do the same. All three together take only 5 hours to clean the drain. In how many hours, can Satish complete the work alone?Solution
Using the LCM method, The LCM of 20, 12, and 5 =60unit (total work) Rakshit's efficiency = 60/20=3unit Ajay's efficiency = 60/12=5unit Efficiency of Rakshit, Ajay, and Satish = 60/5=12unit Now the efficiency of Satish =12-(5+3) =4unit Time taken by Satish = Total work / Efficiency of Satish Time =60/ 4 =15days.
Fill blank number 28 with correct option:Â
My father had neither much formal education nor _________ wealth.
It is heartening _________ China, which has achieved rapid economic growth and _________ in GHG emissions, is firmly behind the pact to reduce the risk ...
Choose the most appropriate word to fill in the blank:
The new policy is designed to __________ the negative impact of the project on the envir...
Our bodies convert the food we eat into energy and use __________ the various functions.
The scheme will help create more hospitals and will create lot of_____________ for doctors and paramedical staff.
There are still a few people in northern Europe who think that global warming might not be such a bad thing. In Britain, where summer can sometimes see...
- Select the most appropriate option to fill in the blank.
Senior judges of the Supreme Court ___________the morning to discuss the issue.
... - Select the most appropriate option to fill in the blank.
The team was determined to complete the trek, come _____ or high water.
... Select the most appropriate option to fill in the blank.
The old telephone ______ nobody wants has been thrown into the junkyard.
Relevant for Exams:
