Question

The average test score of RSM students in September increased by 10%. In October it increased by another 15%. By what percent did the average score on the test increase during the two months?

Answer 1

Answer:

26.5%

Step-by-step explanation:

The answer is the same as what AnimeBrainly said, but 126.5% is the total amount, not the increase. 100% to 126.5% is a 26.5% increase.

Answer 2

The Average test score start = 100%

It increases by 10%: 

100% = 1
10% = 0.10

1 x 0.10 = 0.1
1 + 0.1 = 1.1

It increases by another 15%

1.1 x 0.15 = 0.165
1.1 + 0.165 = 1.265
Remember to move the place value digit to the right two spaces to make it a percentage

126.5% increase is your answer

hope this helps