Home
Class 14
MATHS
A can do a work in 21 days and B in 42 d...

A can do a work in 21 days and B in 42 days. If they work on it together for 7 days, then what fraction of work is left?

A

`frac(5)(8)`

B

`frac(8)(15)`

C

`frac(7)(15)`

D

`frac(1)(10)`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

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 :

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 (1)/(4) b.(1)/(10)c(7)/(1)d.(8)/(15)

A can do a work in 20 days and B can do it in 14 days. If they work together for 7 days, then the fraction of the work left is:

A alone can do a task in 35 days and B alone in 14 days. If they work on it together for 4 days, then what fraction of the task is left?

A can do a work in 15 days and B in 20 days. If they together work on it for 4 days, then the fraction of the work that is left is :