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Word Problems

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by swerve » Mon Jul 13, 2020 4:35 am

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Answers

A

B

C

D

E

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Difficulty—

At Joe's candy store, the total cost of 1 gumball and 1 lollipop is $0.74. The total cost of 1 chocolate bar and 1 lollipop is $0.92. The total cost of 1 gumball and 1 chocolate bar is $1.24. what is the cost in dollars of 1 chocolate bar?

A. 0.53
B. 0.59
C. 0.63
D. 0.67
E. 0.71

The OA is E

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Re: Word Problems

by Scott@TargetTestPrep » Sun Jul 19, 2020 9:01 am
swerve wrote: ↑
Mon Jul 13, 2020 4:35 am
 At Joe's candy store, the total cost of 1 gumball and 1 lollipop is $0.74. The total cost of 1 chocolate bar and 1 lollipop is $0.92. The total cost of 1 gumball and 1 chocolate bar is $1.24. what is the cost in dollars of 1 chocolate bar?

A. 0.53
B. 0.59
C. 0.63
D. 0.67
E. 0.71

The OA is E

Solution:

Let G, L and C be the cost of 1 gumball, 1 lollipop and 1 chocolate bar, respectively. We can create the equations:

G + L = 0.74

C + L = 0.92

and

G + C = 1.24

Adding the 3 equations together, we have:

2G + 2L + 2C = 2.9

G + L + C = 1.45

Since G + L = 0.74, we have


0.74 + C = 1.45

C = 0.71

Answer: E

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