P can complete the work in (12 x 8) hrs. = 96 hrs.
Q can complete the work in (8 x 10) hrs. = 80 hrs.
| ∴ P's1 hour's work = |
1 |
and Q's 1 hour's work = |
1 |
. |
| 96 |
80 |
| (P + Q)'s 1 hour's work = |
❨ |
1 |
+ |
1 |
❩ |
= |
11 |
. |
| 96 |
80 |
480 |
| So, both P and Q will finish the work in |
❨ |
480 |
❩ |
hrs. |
| 11 |
| ∴ Number of days of 8 hours each = |
❨ |
480 |
x |
1 |
❩ |
= |
60 |
days = 5 |
5 |
days. |
| 11 |
8 |
11 |
11 |
