Mr. Tan spent $50 on curry puffs. Each curry puff costs 80 cents, but with a promotion every 3 curry puffs one is half price. Through calculations, it was determined that Mr. Tan bought 71 curry puffs.

1. © mathsheuristics  The cost of each curry puff was 80 cents. During a promotion, for every three curry puffs bought, one curry puff will be sold at half the price. Given that Mr. Tan spent $50, how many curry puffs did he buy? 2.80 1

2. © mathsheuristics  2.80 The cost of each curry puff was 80 cents. During a promotion, for every three curry puffs bought, one curry puff will be sold at half the price. Given that Mr. Tan spent $50, how many curry puffs did he buy? ……………… .. ? 50 1 set 1 set 1 2

3. © mathsheuristics  2.80 The cost of each curry puff was 80 cents. During a promotion, for every three curry puffs bought, one curry puff will be sold at half the price. Given that Mr. Tan spent $50, how many curry puffs did he buy? ……………… .. ? 50 1 set 1 set 50 ÷ 2.8 = 17 remainder 2.4 1 2 3

4. © mathsheuristics  2.80 ……………… .. ? 50 1 set 1 set 50 ÷ 2.8 = 17 remainder 2.4 17 x 4 = 68 The cost of each curry puff was 80 cents. During a promotion, for every three curry puffs bought, one curry puff will be sold at half the price. Given that Mr. Tan spent $50, how many curry puffs did he buy? 1 2 3

5. © mathsheuristics  2.80 ……………… .. ? 50 1 set 1 set 50 ÷ 2.8 = 17 remainder 2.4 17 x 4 = 68 The cost of each curry puff was 80 cents. During a promotion, for every three curry puffs bought, one curry puff will be sold at half the price. Given that Mr. Tan spent $50, how many curry puffs did he buy? 2.4 ÷ 0.8 = 3 1 2 3

6. © mathsheuristics  2.80 ……………… .. ? 50 1 set 1 set 50 ÷ 2.8 = 17 remainder 2.4 17 x 4 = 68 The cost of each curry puff was 80 cents. During a promotion, for every three curry puffs bought, one curry puff will be sold at half the price. Given that Mr. Tan spent $50, how many curry puffs did he buy? 2.4 ÷ 0.8 = 3 68+3 =71 Ans: 71 curry puffs 1 2 3