Percent Problems
Probabili-Quest
Chance Encounters
100

what is 25% of 80?

what is 20


100

what is the probability of flipping a coin and it landing on heads 

what is 50%


100

a spinner is divided into 4 equal sections: red, blue, green, and yellow. whats the chance it lands on green 

what is 1/4 or 25%

200

if a shirt costs %50 and its on sale for 20% off, how much is the discount

What is $10 off

200

there are 4 red marbles and 6 blue marbles in a bag. whats the probability of picking a red marble?

what is 2/5 or 40%

200
There are 5 pencils in a box: 3 are sharpened, 2 are not. if you grab at random, what's the probability of getting one that isn't sharpened 

what is 2/5 or 40%

300

a student got 18 out of 20. what is the percent they got 

what is 90%

300

a die has six sides. what is the probability of it rolling a 3 

what is 1/6 16.67%

300

a jar has 10 jellybeans: 4 cherry, 3 lemon, and 3 grape. whats the chance you get a lemon jellybean

what is 3/10

400

a population increases from 200 to 260 people. what is the percent increase 

what is 30%

400

a deck hs 10 cards numbered 1-10. whats the probability of picking number 7

what is 1/10 or 10%

400

you roll a number cube once. whats the probability you roll an odd number 

what is 1/4 or 25%

500

if a video game is $60 and you have a 15% coupon, what is the final price?

what is $51

500
if you flip 2 coins, what's the probability that both land on tails?

what is 1/4 25%

500

A school has 200 students, and 30 of them are in the chess club. What's the percentage of students are in the chess club

what is 15%

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