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Ronald and Elan are working on an Assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan takes 5 hours to type 40 pages. How much time will they take working together on two different computers to type an assignment of 110 pages ?
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- 7 hrs. 30 min.
- 8 hrs.
- 8 hrs. 15 min.
- 8 hrs. 25 min.
Correct Option: C
| Ronald’s 1 hour’s work = | = | pages | 6 | 3 |
[ Pages typed in 6 hrs. = 32
| ∴ pages typed in 1 hr = | ] | |
| 6 |
Elan’s 1 hour’s work = 8 pages 1 hour’s work of the both
| = | + 8 = | pages | 3 | 3 |
| ∴ Required time = | = | hours | 40 | 4 |
Required time = 8 hours 15 minutes
