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A survey was conducted on 208 companies that make use of at least one

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Carcass
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A survey was conducted on 208 companies that make use of at least one [#permalink] New post   10 Jul 2024, 01:09
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A survey was conducted on 208 companies that make use of at least one of the two facilities to receive calls: the switch mode or the voice call.
It was found that 120 companies use a switch to receive calls while 90 companies use the voice call facility.



Quantity A
Quantity B
The number of companies that use the switch mode but not the voice call facility
88



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A
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B
teshu325
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Re: A survey was conducted on 208 companies that make use of at least one [#permalink] New post   15 Jul 2024, 04:13
Carcass

Could you please post how to solve this question?

I got the answer as D!
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Carcass
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Re: A survey was conducted on 208 companies that make use of at least one [#permalink] New post   15 Jul 2024, 05:26
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Please: see our math handout or math book for more on overlapping sets

Usually on the GRe they are fairly simple

Use the formula

X+Y-Both (the intersection where a company use both systems) + Neither (outside of the intersection)= Total

X+Y-B+0=208 we are looking for both as variable

120+90-B+0=208

B=2

So we need to find X now

120-2=118

A>B

I hope this helps
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teshu325
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Re: A survey was conducted on 208 companies that make use of at least one [#permalink] New post   15 Jul 2024, 08:59
Carcass wrote:
Please: see our math handout or math book for more on overlapping sets

Usually on the GRe they are fairly simple

Use the formula

X+Y-Both (the intersection where a company use both systems) + Neither (outside of the intersection)= Total

X+Y-B+0=208 we are looking for both as variable

120+90-B+0=208

B=2

So we need to find X now

120-2=118

A>B

I hope this helps


Thanks, I was making the box set, my bad :(
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gmatclubot
Re: A survey was conducted on 208 companies that make use of at least one [#permalink]
15 Jul 2024, 08:59
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