Level 3
Roger had two planks of the same length. He sawed one plank into equal parts of length 90 cm. In each part he drilled 6 small holes as shown in Figure 1. After that, he sawed the other plank into equal parts of length 1.5 m and in each part, he drilled 8 big holes as shown in Figure 2. When he finished drilling, he counted that there were 12 more small holes than big holes. If all the holes are spaced equally, how many holes were there altogether?
4 m
Level 3
Lynn paid $410 for some wafers and scones. The ratio of the boxes of wafers to the boxes of scones was 3 : 2. Each box of wafers cost $5 more than each box of scones. She paid $130 more for the wafers than the scones. What was the price of each box of wafers?
4 m
Level 3
A drink seller mixes 3.5 ℓ of water with 1.5 ℓ of orange syrup. How much orange syrup must he use if he wishes to prepare 50 ℓ of the mixture?
3 m
Level 3
Gopal bought 18 apples at 3 for $2.50. If the cost of the apples now is 4 for $3.00, how many apples can Gopal buy with the same amount of money?
3 m
Level 3 PSLE
A muffin costs $0.70 in Bakery A. For every 3 muffins a customer buys, he can buy the fourth one at half the price. What is the greatest number of muffins that a customer can buy with $84?
3 m