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GRE Prep Club Test - A child bus ticket costs $0.40 and an a

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GRE Prep Club Test - A child bus ticket costs $0.40 and an a [#permalink] New post 02 Jan 2017, 04:22
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Question Stats:

100% (00:45) correct 0% (00:00) wrong based on 1 sessions
A child bus ticket costs $0.40 and an adult’s ticket costs $0.70. If a group of 11 pays $5.90

Quantity A
Quantity B
Number of children
Number of Adults




Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from information given.

Can someone explain how the answer is supposed to be more adults than children in the below question. According to the answer A > C

This is how I solved : A+C = 11

.7A + .4C = $5.90 substitute A = 11 - C

.7(11-C) + .4C = $5.90

7.7 - .7C + .4C =$5.90

-.3C = -1.8

C = 6 Then go to the equation A + C =11, A = 5
[Reveal] Spoiler: OA

Last edited by GreenlightTestPrep on 02 Jan 2017, 16:57, edited 2 times in total.
Edited by Carcass
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Re: GRE Prep Club Test - A child bus ticket costs $0.40 and an a [#permalink] New post 02 Jan 2017, 16:57
Expert's post
Springer wrote:
A child bus ticket costs $0.40 and an adult’s ticket costs $0.70. If a group of 11 pays $5.90

Quantity A
Quantity B
Number of children
Number of Adults




Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from information given.

Can someone explain how the answer is supposed to be more adults than children in the below question. According to the answer A > C

This is how I solved : A+C = 11

.7A + .4C = $5.90 substitute A = 11 - C

.7(11-C) + .4C = $5.90

7.7 - .7C + .4C =$5.90

-.3C = -1.8

C = 6 Then go to the equation A + C =11, A = 5


Your approach and calculations are perfect.
Number of children = 6
Number of adults = 5

Answer: A
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Re: GRE Prep Club Test - A child bus ticket costs $0.40 and an a [#permalink] New post 02 Jan 2017, 17:10
Expert's post
Springer wrote:
A child bus ticket costs $0.40 and an adult’s ticket costs $0.70. If a group of 11 pays $5.90

Quantity A
Quantity B
Number of children
Number of Adults




Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from information given.

Can someone explain how the answer is supposed to be more adults than children in the below question. According to the answer A > C

This is how I solved : A+C = 11

.7A + .4C = $5.90 substitute A = 11 - C

.7(11-C) + .4C = $5.90

7.7 - .7C + .4C =$5.90

-.3C = -1.8

C = 6 Then go to the equation A + C =11, A = 5




Hey!

The answer is indeed wrong!

Fixed.

Thanks and regards,
_________________

Sandy
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Re: GRE Prep Club Test - A child bus ticket costs $0.40 and an a   [#permalink] 02 Jan 2017, 17:10
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