- Chain Rule - Formulas
- Chain Rule - General Questions
Chain Rule
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of a job in 10 days. At this rate, how many more days will it takes him to finish the job?
| 7 | 1 |
| 2 |
ANS:B - 6
| Work done = | 5 |
| 8 |
| Balance work = |  |
1 - | 5 |  |
= | 3 |
| 8 | 8 |
| Then, | 5 | : | 3 | = :: 10 : x |  |
5 | x x = | 3 | x 10 |
| 8 | 8 | 8 | 8 |
 x = |
|
3 | x 10 x | 8 | |
| 8 | 5 |
x = 6.
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