A completes 40 of a task in 10 days and then takes the help of B and C B is 50 as efficient as A is ...........

Quantitative Aptitude ( CCS) Time and work

A completes 40% of a task in 10 days and then takes the help of B and C. B is 50% as efficient as A is and C is 50% as efficient as B is. In how many more days will they complete the work?

13 1/3

8 4/7

10 2/3

छोटे Courses बड़े Results

Master Time and work

Prepare through Micro-courses

Try Now

Explanation:

Solution:
A completes 40% of work in 10days.
Given, A:B is 2:1 and B:C is 2:1
Now A:B:C=4:2:1
A’s work 4*10(days)=40%
Remaining 60%=60/(4+2+1)7=8 4/7 days.