Percents - Review for Quiz Lessons 1-4

48 is 40% of what number?

• 115

• 120

• 88

• 48.40

What is 225% of 80?

• 100

• 225.80

• 35.5

• 180

Derek has 50 marbles in his collection. 38% of his marbles are red. How many marbles are red?

• 18

• 19

• 20

• 131

Of 812 students, 36% do not enjoy Math class. What is a reasonable ESTIMATE for the number of students who do not enjoy Math class?

• 0, everybody loves Math class.

• 260 students

• 292.32

• 320 students

It rained for 40% of the time that we were in school on Monday. There is 7.5 hours in a school day. How many hours did it rain while we were in school on Monday?

• 3 hours

• 3.5 hours

• 18.75 hours

• 2.5 hours

A survey shows that 62% of the students listen to music while they do their homework. Suppose there are 178 students doing homework one evening. What would you predict would be the number of students listening to music while they were doing their homework?

• 105 students

• 110 students

• 287 students

• 178 students

What number is 1/4% of 80?

• 2

• 0.2

• 0.02

• 20

On Friday, 62% of the tickets sold for South's football game were adult tickets. The rest of the tickets sold were student tickets. If the school sold 1040 tickets in all, how many adult tickets were sold? How many student tickets were sold?

• 600 adult tickets and 440 student tickets

• 62 adult tickets and 978 student tickets

• 620 adult tickets 420 student tickets

• 645 adult tickets and 395 student tickets