Question

*
A can do a piece of workin 5 days which B alone can do in 15 days they begin together but 2 days before
the completion of the work Aleaves off. The total number of days for the work to be completed
a) 5 a days
b) 37 days
c)6 days
d)8 days

Answer 1

Answer:

A+B)

′

s1 day work

=

14

1

+

21

1

=

42

3+2

=

42

5

At the end, B works for 3 days so work done by B in 3 days=3×

21

1

=

7

1

.

Remaining work 1−

7

1

=

7

6

which is to be done by A and B.

42

5

of work (A+B) can do in 1 days

∴

7

6

of work (A+B) can do in

5/42

1

×

7

6

=7

5

1

days

∴ Time to complete the work

=3+7

5

1

=10

5

1

days.

Answer 2

Answer:

hi

Step-by-step explanation:

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