Crash Course
Quick practice
Question 1 of 5
A completes a job in 5 days, B completes a job in 10 days and C completes a job in 15 days. How much time is required to complete the same job if all of them work together?
A
4 days
B
2.7 days
C
3.6 days
D
3 days
Get unlimited practice with UPSC CSE - GS subscription
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go