Given that the time taken by an oil dropper to drop 100 oil drops is 800 min, find the time taken to drop 10 oil drops in hours.

Answer

`1.3` hr

Explanation

To drop 100 oildrops from a dropper takes 800 min.
100 drops `to` 800 min
10 drops `to(10xx800)/100` min
`t=(10xx8)/1` min`=80/60`hr=1.3 hr