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Bunuel
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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 05:00
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E
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88% (01:27) correct 12% (01:27) wrong based on 81 sessions

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Thirty percent of the balloons used to decorate a party are red and the rest are yellow. If one-quarter of the yellow balloons have strings and there are a total of 40 balloons, how many of the yellow balloons do not have strings?

A. 6
B. 7
C. 12
D. 18
E. 21




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E
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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 05:34
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70 % are yellow so yellow = 28

75 % yellow no strings

So 21 yellow have no strings

So ans is e ) 21

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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 06:43
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Total balloons = 40 (only Red / Yellow)

Red = 30% = 12
Yellow = 40-12=28

Yellow with strings = 28*.25 = 7
Yellow without strings = 28-7 = 21

IMO Option E
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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 07:37
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IMO E

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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 07:40
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70% balloons out of 40 are yellow = 28
3/4 th of them don't have strings = 21
Answer E

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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 07:45
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Thirty percent of the balloons used to decorate a party are red and the rest are yellow. If one-quarter of the yellow balloons have strings and there are a total of 40 balloons, how many of the yellow balloons do not have strings?

A. 6
B. 7
C. 12
D. 18
E. 21

30% red means 12 red balloons; Rest 28 balloons are yellow.
a quarter of the yellow balloons have strings: 7 yellow balloons have strings, and 21 yellow balloons don't have strings.

Answer E.
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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 08:47
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Ans E

Given Total no of Balloons are 40

Of which, # Blue = 12 (30% of 40) and # Yellow = 28

# Stringed Balloons = 7 (1/4 of 28) ; So # the balloons with no strings = 21
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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 09:34
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IMO E

total = 40
red = 0.3 * 40 = 12
yellow = 0.7 * 40 = 28
1/4 * yellow = 7 (yellow with strings)
yellow without strings = 28 - 7 = 21
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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 10:21
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The answer is E

The total number of balloons are 40,

Therefore the total number of yellow balloons = 40*(70/100 = 28

1/4th of the yellow balloons have strings i.e. 28/4 = 7

Therefore, the number of yellow balloons do not have strings = 28-7 = 21
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GMAT Club Around The World!!! Thirty percent of the balloons used to 31 Dec 2020, 11:42
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Yellow Ballons = 40* 70% = 28

Without strings= 3/4*28= 21, So, I think A. :)
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GMAT Club Around The World!!! Thirty percent of the balloons used to 01 Jan 2021, 07:45
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Correct Answer E
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GMAT Club Around The World!!! Thirty percent of the balloons used to 01 Jan 2021, 07:54
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Imo-E

Yellow ballon-70*40/100
=28
Yellow balloons no strings=28*3/4
=21

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GMAT Club Around The World!!! Thirty percent of the balloons used to 02 Jan 2021, 18:12
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Total no. of Balloons = 40
30% of 40 are red balloons = 12
So the total number of yellow balloons = 28
One-quarter of balloons have strings so out of 28 balloons 7 balloons will have a string
And the yellow balloons with no string will be 28-7= 21

So the answer will be E
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