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Aptitude Day 306

Answers of Day 305: 1. 78.
                                    2. 10.

Problems to solve on Chain rule:

1. 20 men can complete a piece of work in 8 days. In how many days will 16 men complete the same work?

2. A wheel that has 5 cogs has meshed with a larger wheel of 15 cogs. When the smaller wheel has made 20 revolutions, then the number of revolutions made by the larger wheel is:
Hint: Indirect proportional.


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