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In a jar, 60% of the marbles are red and the rest are green

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Carcass
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In a jar, 60% of the marbles are red and the rest are green [#permalink] New post   03 May 2019, 01:59
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In a jar, 60% of the marbles are red and the rest are green.

Quantity A
Quantity B
40% of the red marbles in the jar
60% of the green marbles in the jar


A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
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C
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Re: In a jar, 60% of the marbles are red and the rest are green [#permalink] New post   03 May 2019, 05:16
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Carcass wrote:
In a jar, 60% of the marbles are red and the rest are green.

Quantity A
Quantity B
40% of the red marbles in the jar
60% of the green marbles in the jar




Let T = the total number of marbles in the jar

In a jar, 60% of the marbles are red and the rest are green.
Number of red marbles = 60% of T = 0.6T
Number of green marbles = 40% of T = 0.4T

QUANTITY A: 40% of the RED marbles in the jar = 40% of 0.6T = (0.4)(0.6T) = 0.24T
QUANTITY B: 60% of the GREEN marbles in the jar = 60% of 0.4T = (0.6)(0.4T) = 0.24T

Answer: C

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Re: In a jar, 60% of the marbles are red and the rest are green [#permalink] New post   03 May 2019, 05:25
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Red marbles are 0.6 of total no. of marbles. It follows that
Green marbles are 0.4 of total no. of marbles.
If the no. of marbles in the jar are x then,

Qty A = 0.6*0.4*x
Qty B = 0.4*0.6*x

Both are same so option C
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gmatclubot
Re: In a jar, 60% of the marbles are red and the rest are green [#permalink]
03 May 2019, 05:25
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