mental math
10% of 90
9
49% of ? = 52.43
107
7 is what percent of 70?
10%
increase 50 by 60%
80
A plane ticket that usually costs $500 is on sale for $250. What is the percentage decrease?
50%
5% of 80
4
A cleaning company has 63 employees that work night shifts, which represents 35% of all the staff. How many employees work at the company in total?
180
50 is what percent of 450?
11.1...%
a shop increases the price of a pair of shoes from $12 to $48.
300%
A cinema had 240 clients yesterday and 200 clients today. What was the percentage decrease?
16.6%
20% of 140
28
96% of ? = 327.36
341
Jake's computer shop sold 210 laptops last week out of the 310 he had in stock. What percentage of the computers that he had in stock did he sell?
52.2%
a neighborhood with 180 houses is expected to increase its capacity by 20%. How many houses will it have when the work is complete?
216
decrease 65 by 20%
52
what is ROI % if you earned $100 on $1000 investment
10%
Jessica spent $255 on a new phone, which was 30% of her savings. How much money did she have before she bought the phone?
$850
On an exam, Lewis answered 43 out of 50 problems correctly. What percentage did he answer correctly?
86%
Increase 86 by 17.5%
101.05
decrease 320 by 3%
310.4
5% of 500
$25
a mixture is 26% water. What quantity of the mixture is required to get 260 grams of water?
1000 g
Elizabeth had $975 and spent $48.75 on new shoes. What percentage of her money did she spend?
5%
In the month of May, Laura paid her electricity bill, which was € 40. In the month of June, she paid € 143 .
What was the percentage increase in her electricity bill?
257.5 %
In the last three months, there were 620 traffic accidents in the area. After adopting new measures, the number of accidents is expected to be reduced by at least 15 %.
What is the maximum number of accidents expected to be in the next three months?
527