Level 2 PSLE A group of 5 girls booked a tennis court for 3 hours and took turns to play. At any time, there were 4 girls playing on the court. On average, how long did each girl play on the court? Give the answer in hours and minutes.
Level 1 PSLE
Sandy had 50 stickers and Tina had 22 stickers. After Sandy gave some of her stickers to Tina, the number of stickers Sandy and Tina had was in the ratio 1 : 2. How many stickers did Tina have in the end?
Level 2
The ratio of Wendy's stamps to Yoko's stamps at first was 3 : 4. After Wendy gave Yoko 24 stamps, the ratio of Wendy's stamps to Yoko's stamps is 1 : 2. What was the total number of stamps they had altogether?