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In a group, 90% members drink at least one of the three drinks - Tea,

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AkshdeepS
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In a group, 90% members drink at least one of the three drinks - Tea, [#permalink] New post   15 Sep 2019, 21:49
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45% (medium)

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66% (01:53) correct 34% (02:12) wrong based on 224 sessions
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In a group, 90% members drink at least one of the three drinks - Tea, Coffee, and Latte . 60% members drink at least two of the three drinks and 20% members drink all three. What is the percentage of members who drink exactly one or two of the three drinks?

a. 50
b. 60
c. 70
d. 80
e. 90
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C
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Hazel1134
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In a group, 90% members drink at least one of the three drinks - Tea, [#permalink] New post   16 Sep 2019, 00:01
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AkshdeepS wrote:
In a group, 90% members drink at least one of the three drinks - Tea, Coffee, and Latte . 60% members drink at least two of the three drinks and 20% members drink all three. What is the percentage of members who drink exactly one or two of the three drinks?

a. 50
b. 60
c. 70
d. 80
e. 90


Question is asking the total percentage of members who drink 1 or 2 of the 3.

Since Total members who drink is 90% and members who drank all three are 20%, members who drank 1 or 2 is equal to 90-20=70

hence C
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Re: In a group, 90% members drink at least one of the three drinks - Tea, [#permalink] New post   31 May 2020, 05:15
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exactly 1 + exactly 2 + exactly 3 + neither = total

Need to calculate exactly 1 + exactly 2 (say x)

x + 20 + 10 = 100
=> x = 70

(C) is the correct answer.
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Re: In a group, 90% members drink at least one of the three drinks - Tea, [#permalink] New post   31 May 2020, 05:26
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Atleast 1 drink =90%
Atleast 2 drink = 60%
Therefore exactly one drink = 30%
Exactly 3 drinks = 20%
Therefore exactly 2 drinks = 40%
Therefore one or two = 30+40=70%

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Re: In a group, 90% members drink at least one of the three drinks - Tea, [#permalink] New post   06 May 2023, 19:08
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AkshdeepS wrote:
In a group, 90% members drink at least one of the three drinks - Tea, Coffee, and Latte . 60% members drink at least two of the three drinks and 20% members drink all three. What is the percentage of members who drink exactly one or two of the three drinks?

a. 50
b. 60
c. 70
d. 80
e. 90


Can be easily solved through a figure-
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Re: In a group, 90% members drink at least one of the three drinks - Tea, [#permalink]
06 May 2023, 19:08
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