Question

Caleb scored 60 on his first math test. he studied diligently for the next test and earned a score of 90. what is his percent of increase from the first test to the second test?

Answer 1

his percent increase was 50%

Answer 2

Caleb's percent of increase from the first test to the second test is:

50%

Explanation:

Caleb scored 60 on his first math test.

For the next test he earned a score of 90.

Percentage increase=
`(score\ in\ second\ test-score\ in\ first\ test)/(score\ in\ first\ test)* 100`

Percentage increase=
`(90-60)/(60)* 100`

Percentage increase=
`(30)/(60)* 100`

Percentage increase=
`(1)/(2)* 100`

Percentage increase=50%

Hence, Caleb's percent of increase from the first test to the second test is:

50%