Question

This year, there was 40% more snow than last year. The amount of snow this year is 140% of the amount of snow last year.

1. This year, there were 25% fewer sunny days than last year. The number of sunny days this year is (BLANK)% of the number of sunny days last year.


2. Compared to last month, there was a 50% increase in the number of houses sold this month. The number of houses sold this month is (BLANK)% of the number of houses sold last month.


3. The runner’s time to complete the marathon was 10% less than the time to complete the last marathon. The runner's time to complete the marathon was (BLANK)% of the time to complete the last marathon.

PLEASE FILL IN THE BLANKS. This is in fact the full question

Answer 1

1. 75%
2. 150%
3. 90%

Explanation:

You want the percentage multiplier associated with the following changes:

1. 25% decrease
2. 50% increase
3. 10% decrease

Multiplier

To find the multiplier, add 1 to the change. When you want the multiplier in percent, then add 100% to the change expressed as a percent. (1 = 100%)

1. 25% fewer

100% -25% = 75% . . . . of last year

2. 50% increase

100% +50% = 150% . . . . of sales last month

3. 10% less

100% -10% = 90% . . . . of last marathon's time