Question
Mary consumed 55 mℓ of medicine from a bottle containing containing 40 doses of medicine. After she had accidentally spilled 17 of the remaining medicine, only 30 doses of medicine were left. Calculate the total volume of medicine in the bottle at first in mℓ.
4 m

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Mary consumed 55 mℓ of medicine from a bottle containing containing 40 doses of medicine. After she had accidentally spilled 17 of the remaining medicine, only 30 doses of medicine were left. Calculate the total volume of medicine in the bottle at first in mℓ.