Question

Lisa purchased groceries worth $34 for a party. A gallon of milk costs $2.50, a gallon of ice cream costs $7.50, and a gallon of lemonade costs $3.00

If Lisa bought 4 gallons of milk, and 2 gallons of ice cream, how many gallons of lemonade did she buy?
Answer 1: 5
Answer 2: 3
Answer 3: 2
Answer 4: 4

Answer 1

Answer 2 she bought 3 gallons of lemonade

4x2.50=10

2x7.50=15

10+15=25

34-25=9

9 divided by 3=3

Answer 2

Answer 2 is right.

Explanation:

Given that Lisa purchased groceries worth $34 for a party.

A gallon of milk costs $2.50

No of gallons bought - 4

Cost of milk =
`2.50*4 =10`

a gallon of ice cream costs $7.50

Cost of ice creams =
`2*7.50 = 15`

, and a gallon of lemonade costs $3.00

Let lemonade purchased be x

Then total cost =
`10+15+3x`

This equals 34

`25+3x =34\\3x=9\\x=3`

No of gallons of lemonade purchased =3

Answer 2 is right