Question

Rajesh can do piece of work in 24days and vinay can do the same work in 15 days they work together for 6 days and then vinay leaves in how many days will Rajesh alone finish the remaining work?​

Answer 1

Correct option is B)

A's 1 day's work =

25

1

Similarly, B's 1 day's work =

20

1

A's and B's together 1 day's work

25

1

+

20

1

=

100

4

+

100

5

=

100

4+5

=

100

9

Their 5 day's work together = 5 x 1 day's work

1−

100

45

=

100

100

−

100

45

=

100

100−45

=

100

55

Now, this remaining work is done by B.

Let B takes x days to complete it.

20

1

×x=

100

55

⇒x=

100

55

×20

⇒x=

5

55

⇒x=11

Hence, B will finish the remaining work in 11 days.