Level 3 The product of two numbers is greater than 80 but less than 85. The sum of the two numbers is a multiple of 5. The difference between the two numbers is 8.
Level 3
Mrs Tan has 24 pupils in her class. She wants them to work in groups for an activity. What is the total number of different ways that she can arrange her pupils, so that each group has the same number of pupils?
Level 4 Carla counted the wheels of the cars and bicycles which passed by her while she was waiting for a bus. By the time she counted 38 wheels. How many possibilities are there of each type of vehicles that could have passed by her?
