Question

An English instructor asserted that students test grades are directly proportional to the amount of time spent studying. Lisa studies 4 hours for a particular test and gets a score of 79. At this rate how many hours would she have had to study to get a score of 93?

Answer 1

She have to study 4 hours and 42 minutes to get 93 marks.

Explanation:

when she studied 4 hours she got 79

when she studied 1 hour she got 4/79

`4 / 79* 93`

is the time when she got 93

= 4.70

It means the time will be 4 hours 42 minutes