Level 3 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 .
Level 2
Three containers contain an average of 48 ℓ of water. The 1st container contains 52 ℓ of water and the 2nd container contains 10 ℓ more water than the 1st container. How much water does the 3rd container contain?
