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A bottle is 9⁄10 full of syrup.

Question: A bottle is 9⁄10 full of syrup. If 2⁄5 of this syrup is used, what fraction of the bottle’s total capacity is used?
(A) 9⁄25
(B) 2⁄5
(C) 12⁄25
(D) 4⁄5


Solution:

Find the fraction of the bottle’s total capacity used:
2⁄5 × 9⁄10 = 18⁄50 = 9⁄25
So, 9⁄25 of the bottle’s total capacity is used.

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