IMO Practice Test — Fractions, Decimals & Percents (Mastery)

6 Questions • 25 min • Olympiad level

25:00
Question 1 of 6 hard
A shirt is on sale for 24 after a 20% discount. Original price?
28
30
32
36
Explanation: 80% of original = 24, original = 24÷0.8=30