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Question

# Joe's grandmother wanted to make a delicious dish for them. Joe and his little sister went to a supermarket to buy cooking oils. Joe bought 2 packs of refined oil, each of capacity 1 pt, and 1 cup of coconut oil. His sister bought three packs of 12 pt mustard oil each. Calculate the total amount of oil they bought all together(in gallon).

A
12 gal
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B
13 gal
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Solution

## The correct option is A 12 galLet's first convert every capacity into pints. Joe bought 2 packs of refined oil. Each refined oil has a capacity of 1 pt. ∴ Capacity of refined oil bought =2×1 pt =2 pt Joe also bought coconut oil of capacity =1 cup We know, 2 cups=1 pt ⇒1 cup=12 pt ∴ Joe bought 12 pt of coconut oil. Joe's sister bought three packs of 12 pt mustard oil. ∴ Quantity of mustared oil bought =3×12 pt =112 pt Total quantity of oil bought =Quantity of refined oil+Quantity of coconut oil+Quantity of mustered oil =2 pt+12 pt+112 pt =(2+1) pt+(12+12) pt =4 pt We know, =8 pt=1 gal ⇒4 pt=12 gal ∴ Quantity of oil bought all together =12 gal

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