Quantitative Aptitude :: Time and Work - Discussion
Home > Quantitative Aptitude > Time and Work > MCQs Questions Discussion
36 / 100
Choose the correct option.
A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :
A1/4
B1/10
C7/15
D8/15
Answer: Option (Login/Signup)
Show Explanation
Asked In ::
STEP-BY-STEP
A= 15 days so in 1 day= 1/15
B= 20 days so in 1 day=1/20
If they together work for 1 day then 1/15+1/20= 7/60 work
In 4 days (7/60)*4= 7/15 work completed
So 1-7/15=8/15 work is left.
B= 20 days so in 1 day=1/20
If they together work for 1 day then 1/15+1/20= 7/60 work
In 4 days (7/60)*4= 7/15 work completed
So 1-7/15=8/15 work is left.
Read Full Answer
Report Error
Please Login First Click Here