Question

A does a job in 8 days .B does it in 4 days . How long they both take to complete the same job​

Answer 1

Answer:

Given that A,B does the work in 8,4 days; if total work be x;

⇒ work done in 1 day by A, B is

8

x

,

4

x

.

⇒ if they both work for one day then work done will be

⇒

8

x

+

4

x

=

8

3x

.

⇒ Then total work done x will take

3

8

=2

3

2

days .... (using proportions.)