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If it is assumed that 60 percent of those who receive a ques
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04 Jun 2020, 08:49
04 Jun 2020, 08:49
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Question Stats:
85% (00:37) correct
14% (00:19) wrong based on 64 sessions
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If it is assumed that 60 percent of those who receive a questionnaire by mail will respond and 300 responses are needed, what is the minimum number of questionnaires that should be mailed?
(A) 400
(B) 420
(C) 480
(D) 500
(E) 600
(A) 400
(B) 420
(C) 480
(D) 500
(E) 600
Re: If it is assumed that 60 percent of those who receive a ques
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04 Jun 2020, 08:50
04 Jun 2020, 08:50
Expert Reply
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
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Re: If it is assumed that 60 percent of those who receive a ques
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04 Jun 2020, 09:00
04 Jun 2020, 09:00
1
Carcass wrote:
If it is assumed that 60 percent of those who receive a questionnaire by mail will respond and 300 responses are needed, what is the minimum number of questionnaires that should be mailed?
(A) 400
(B) 420
(C) 480
(D) 500
(E) 600
(A) 400
(B) 420
(C) 480
(D) 500
(E) 600
60 percent of those who receive a questionnaire by mail will respond
Rewrite as: 60 percent of receivers = responders
We want 300 responders, so rewrite as: 60 percent of receivers = 300
60% of what = 300?
Option #1) Check answer choices
A) 400
60% of 400 = 240 (nope, we want 300)
.
.
.
D) 500
60% of 500 = 300...works!!
Or option #2) algebra
60% of x = 300
0.6x = 300
x = 300/0.6
= 500
= D
Or...
60% of x = 300
0.6x = 300
(3/5)x = 300
x = (5/3)300
= 500
= D
Cheers,
Brent
