Question
Kathy consumed 21 mℓ of medicine from a bottle containing containing 45 doses of medicine. After she had accidentally spilled 17 of the remaining medicine, only 36 doses of medicine were left. Calculate the total volume of medicine in the bottle at first in mℓ.
4 m

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Kathy consumed 21 mℓ of medicine from a bottle containing containing 45 doses of medicine. After she had accidentally spilled 17 of the remaining medicine, only 36 doses of medicine were left. Calculate the total volume of medicine in the bottle at first in mℓ.