Sheet # 9/Harry Potter
Name: _____________________ Date_____________
Explain and Show Your Work
1) In a Quidditch match 75% of the 20 person Slytherin team was hit by the quaffle. How many were hit?
2) Hagrid bought Harry the best broomstick available, the Nimbus 2000. The retail cost was $106, but it was on sale at 15% off. What did Hagrid pay for the broomstick?
3) Harry and Ron went on an adventure. They were chased by giant spiders. They ran 15 miles in 1.5 hours. What was their average time per mile?
4) Snape hated Harry. He glared at Harry 46 times per week. This made Harry's scar hurt 23 times per week. What percentage of the time that Snape stared did Harry's scar hurt?
5) Hermione, Harry and Ron took a 30 question quiz in the Dark Ages class. Hermione scored 100%, Harry scored 98% and Ron scored 96%. What was the average of their scores?
6) Each school day at Hogwarts is 10 hours long. School starts at 7:00 a.m. and ends at 5:00 p.m. Ron was excused from school at 9:43 a.m. How many seconds of school did Ron miss that day?
7) Voldemort lost some of his power to Harry. He kept 3/4 of his power. What percent of his power did Harry get?
8) Ron has 160 cards, 10 of which are of Dumbledore. What percentage are Dumbledore cards?
9) Harry is very good at Quidditch. If he wins 50 out of 60 games, how many will he win out of 180 games?
10) Harry caught 5 out of 20 Snitches in Quidditch. What percentage did he catch?
11) Ron spent 3 hours playing chess over the last 6 days. How many hours will he play chess in 18 days?
12) The Hogwarts Express starts out at 80 mph. Each hour it reduces its speed by half. How fast is it travelling in its 8th hour?
Answers for Harry Potter Sheet # 9
1) 0.75 x 20 = 15
2) 15% off means he paid 85% (100 - 15 = 85) of the retail price.
.85 x $106 = $90.10
3) 1.5 hours = 90 minutes
90 minutes/15 miles = 6 minutes for each mile
4) 23/46 = X/100
23 x 100 = 2300
2300 / 46 = 50
X = 50%
5) 100 + 98 + 96 = 294
294 ? 3 = 98% average score
6) 9:43 - 7:00 = 2 hours 43 minutes of school attended
10 hours 0 minutes - 2 hours 43 minutes = 7 hours 17 minutes of school missed
7 hours x 60 minutes = 420 minutes
420 minutes + 17 minutes = 437 minutes
437 minutes x 60 seconds = 26,220 seconds missed that day
7) 1 - 3/4 = 1/4 (Power Harry got)
Harry got 25% of power
8) 6.25%
9) 150 games won
10) 25% caught
11) 9 hours
12) 1st hour - 80 mph
2nd hour- 80 divided 2 = 40 mph
3rd hour - 40 divided 2 = 20 mph
4th hour - 20 divided 2 = 10 mph
5th hour - 10 divided 2 = 5 mph
6th hour - 5 divided 2 = 2.5 mph
7th hour - 2.5 divided 2 = 1.25 mph
8th hour - 1.25 divided 2 = 0.62 mph