Question
PSLE
Mrs Yang had a bottle of oil. She used an equal amount of oil each day. At the end of the fourth day, she had 960 mℓ of oil left. At the end of the eighth day, she had half of the bottle of oil left. How many litres of oil were there in the bottle at first?
2 m

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PSLE
Mrs Yang had a bottle of oil. She used an equal amount of oil each day. At the end of the fourth day, she had 960 mℓ of oil left. At the end of the eighth day, she had half of the bottle of oil left. How many litres of oil were there in the bottle at first?