Level 1 PSLE
Steven completed the race in 150 seconds. He was 25 seconds slower than Tom. How long did Tom take to complete the race? Give your answer in min and s. (Eg 1 min 2s)
Level 2
Hillary bought 12 buns and 15 doughnuts altogether. One bun is y ¢ and one doughnut is $2. She gave the cashier $50. Express her change in terms of y in cents.