Math & Logic · Ages 12–15
Riddle #153
A jacket is marked down 20% in a sale. At the register, a coupon takes a further 20% off the sale price. What is the total discount off the original price?
You solved this one before
Answer: 36%
The second cut applies to the already-reduced price: 0.8 × 0.8 = 0.64, so you pay 64% of the original — a 36% discount, not the 40% the two numbers suggest.