Question

Two persons A and B working together can dig a trench in 8 hours while A alone can dig it in 12 hours. in how

many hours B alone can dig such a trench?​

Answer 1

ANSWER-

Amount of work done in a day,

6

1

+

8

1

=

48

14

=

24

7

out of which

6

1

th

of the work is done by A. Hence, division of the money should be

A=

6

1

×

7

24

×1120=640

B=1120−640=480

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