There are 21 liters of milk in 2 bottles, bottle A and bottle B. If bottle A contains 3 more liters of milk than Bottle B, How much milk is there in bottle B?

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asked May 21, 2016 216k views

2 votes

There are 21 liters of milk in 2 bottles, bottle A and bottle B. If bottle A contains 3 more liters of milk than Bottle B, How much milk is there in bottle B?

Mathematics
middle-school

Aamir Afridi asked

by Aamir Afridi

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1 Answer

6 votes

a+b=21
a=3+b
subsitute
3+b+b=21
subtract 3
b+b=18
2b=18
divide 2
b=9

there are 9 liters in b

Mario Boss answered May 25, 2016

by Mario Boss

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