Level 2
A race car travelled 25 of its journey at an average speed of 64 km/h. Find its average speed for the remaining 480 km if its average speed for the whole journey was 80 km/h.
Level 2 PSLE
3 children rented 2 computers from 4.15 p.m. to 5.00 p.m. and took turns to play games on them. At any time, 2 of them played on the computers while the other child watched. If each of them had the same amount of playing time, how many minutes did each child get?
Level 2 PSLE
Lynn had a bottle of oil. She used an equal amount of oil each day. At the end of the 12th day, 13 of the bottle was left. At the end of the 14th day, the amount of oil left was 100 mℓ . What was the amount of oil in the bottle at first? Express the answer in mℓ .