Question
PSLE
Esther had a bottle of softener. She used an equal amount of softener 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 softener left was 900 mℓ. What was the amount of softener in the bottle at first? Express your answer in mℓ.
2 m

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PSLE
Esther had a bottle of softener. She used an equal amount of softener 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 softener left was 900 mℓ. What was the amount of softener in the bottle at first? Express your answer in mℓ.