Question

15. Altaf can do a piece of work is 12 days while Balraj does it in 8 days only. If both started
working but after 4 days Balraj leaves the work. In how many days can Altaf complete the
work?​

Answer 1

Answer:

The answer will be 6 days.

Step-by-step explanation:

We have given;

Days taken by Altaf to complete his work = 12 days

Days taken by Balraj to complete his work = 8 days

Balraj works for 4 days;

Work done by Alatf in 1 day = 1/12;

Similarly, Work done by Balraj in 1 day = 1/8;

Now, work done in 4 days by Balraj = 1/8 *4

= 1/2

Work he has left = 1 - 1/2

= 1/2;

( Here, we are considering work as whole 1)

Now, Work done by Alatf in 1 day = 1/12;

Hence, days to complete Balraj's left work =

= 1 /12 * x = 1/2; ( here, we are taking x as the days he will take to complete the work)

= x = 12 / 2

= 6 days.

That's all.