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Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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18 Jul 2016, 02:31
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Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. If all 200 people surveyed own a cellular phone, or a pager, or both, what percent of those surveyed either do not own a cellular phone or do not own a pager? (A) 35% (B) 45% (C) 55% (D) 65% (E) 75% Attachment:
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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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18 Jul 2016, 02:43
My option E) Straight forward answer if you follow 2x2 matrix method.. cell , not cell Pag   90 N. pag   110 160 40 200 Required = 110+90 = 150 therefore, 150/200 = 75%.



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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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18 Jul 2016, 02:58
evannolimit wrote: Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. If all 200 people surveyed own a cellular phone, or a pager, or both, what percent of those surveyed either do not own a cellular phone or do not own a pager?
(A) 35% (B) 45% (C) 55% (D) 65% (E) 75% This is how I tried. Since this is percentage and number type, converting all into percentages. Here we are asked the percentage of people who don't have neither CP or Pager. We are given 80% hold CP i.e. 20% does't have CP. Similarly for the pager. Hence 75%. Option E.
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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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18 Jul 2016, 07:46
redundant information. we do not need the number 200 to find oa is e.



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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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13 Nov 2016, 06:15
victory47 wrote: redundant information. we do not need the number 200 to find oa is e. we can... 80% who own cellular phone = 160 45% own pager = 90 total who own cellular phone = 160+90=250. However total number of people is 200 so 250200=50 people own both.. now we need people who either own a cp or a pager (but not both), so we substract the 50 from 200=150 is our required population. (150\200)*100 = 75.
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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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13 Nov 2016, 09:23
evannolimit wrote: Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. If all 200 people surveyed own a cellular phone, or a pager, or both, what percent of those surveyed either do not own a cellular phone or do not own a pager?
(A) 35% (B) 45% (C) 55% (D) 65% (E) 75% n ( C ∪ P ) = n ( C ) + n ( P )  n ( C ∩ P ) 200 = 160 + 90  n ( C ∩ P ) Or, n ( C ∩ P ) = 250  200 Or, n ( C ∩ P ) = 50 So, Percentage of people owning both a Cell Phone & Pager is 25% and 75% owns a Cell Phone + Pager... Thus , 75% either do not own a cellular phone or do not own a pager.. Hence, answer will be (E)...
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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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06 Dec 2016, 11:05
We know : T (total)  N (neither)= A + B  K(both) Total : 100% (given) Neither : 0 % (given) 100 0 = 80 + 45 + K => K = 125100= 25 Now we know that A= A1 + K i.e. A= Own cellular phone, K = own cellular phone and pager, A1= own's cellular phone only and not pager , => 80=A1 + 25 =>A1= 55 Similarly B=B1 + K, => B1= 20 So A1 + B1 = 55+20 = 75 Ans : E



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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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14 Apr 2017, 20:20
The 80% (160) that own a cell phone and 45% (90) that own a pager also include those that own both. If c=cell phone owners only, p=pager owners only and b=both, then: Total=(c+b)+(p+b)b So, 200=160+90b b=50, so 150 own only one of either a pager or cell. 75%.
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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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18 Apr 2017, 13:38
Quote: Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. If all 200 people surveyed own a cellular phone, or a pager, or both, what percent of those surveyed either do not own a cellular phone or do not own a pager? 80% own cell phone, 20% do not. 45% own pager, 55% do not. So percent of those who either do not own cell phone or do not own pager is 20% + 55% = 75%



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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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29 Jan 2018, 15:17
Hi All, This question is a modified version of a typical Overlapping Sets question. You can solve it with the tictactoe board or the Overlapping Sets Formula: Total = (Group 1) + (Group 2)  Both + Neither In this prompt, we're told that ALL 200 people own at least one of the two items, so the 'Neither' group would be 0. 80% of 200 = 160 people own a cell phone 45% of 200 = 90 people own a pager Plugging that data into the formula, we have... 200 = 160 + 90  Both 200 = 250  Both Both = 50 Since 50 of the 200 people have both items, the other 200  50 = 150 people have just one item. As a percentage of the total, that is 150/200 = 75% Final Answer: GMAT assassins aren't born, they're made, Rich
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Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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07 Jan 2019, 07:23
evannolimit wrote: Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. If all 200 people surveyed own a cellular phone, or a pager, or both, what percent of those surveyed either do not own a cellular phone or do not own a pager? (A) 35% (B) 45% (C) 55% (D) 65% (E) 75% Attachment: Screen Shot 20160718 at 5.24.51 PM.png HI Bunuel, niks18, Gladiator59, either do not own a cellular phone or do not own a pager Does it mean only a cellular phone and only pager?
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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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07 Jan 2019, 07:30
NandishSS wrote: evannolimit wrote: Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. If all 200 people surveyed own a cellular phone, or a pager, or both, what percent of those surveyed either do not own a cellular phone or do not own a pager? (A) 35% (B) 45% (C) 55% (D) 65% (E) 75% Attachment: Screen Shot 20160718 at 5.24.51 PM.png HI Bunuel, niks18, Gladiator59, either do not own a cellular phone or do not own a pager Does it mean only a cellular phone and only pager? Hi NandishSSyes your understanding is correct. You can visualize the question as Those who do not own cellular phone = Those who own pagers only Those who do not own pager = Those who own cellular phones only So those who do not own a cellular phone or a pager = Those who own only cellular phone + those who own only pager



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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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04 Apr 2019, 18:53
evannolimit wrote: Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. If all 200 people surveyed own a cellular phone, or a pager, or both, what percent of those surveyed either do not own a cellular phone or do not own a pager? (A) 35% (B) 45% (C) 55% (D) 65% (E) 75% Attachment: Screen Shot 20160718 at 5.24.51 PM.png We can use the formula for overlapping sets for this problem: Total = #Cell + #Pager  Both + Neither 200 = 160 + 90  x + 0 200 = 250  x 50 = x We see that 50 individuals own both a cell phone and a pager. Thus, the number of people who own a cell phone and not a pager is 160  50 = 110. Similarly, of the 90 individuals who own a pager, there are 90  50 = 40 who own a pager and not a cell phone. Thus, there are 110 + 40 = 150 who either do not own a cell phone or do not own a pager. This number represents 150/200 = 3/4 x 100% = 75% of the people surveyed. Answer: E
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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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02 Dec 2019, 05:01
evannolimit wrote: Of 200 people surveyed, 80 percent own a cellular phone and 45 percent own a pager. If all 200 people surveyed own a cellular phone, or a pager, or both, what percent of those surveyed either do not own a cellular phone or do not own a pager? (A) 35% (B) 45% (C) 55% (D) 65% (E) 75% Attachment: The attachment Screen Shot 20160718 at 5.24.51 PM.png is no longer available We don't need to use the actual numbers since we need a percent as our answer, saving our some calculations. Most efficient way to do this Q is to use a doubleset matrix as shown in the attachment. "either do not own a cellular phone or do not own a pager" => ~C + ~P = 20 + 55 = 75% ANSWER: E
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Re: Of 200 people surveyed, 80 percent own a cellular phone and 45 percen
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