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If the sum of two numbers is 19 and their product is 88, what is the

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Math Expert
Joined: 02 Sep 2009
Posts: 53798
If the sum of two numbers is 19 and their product is 88, what is the  [#permalink]

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27 Feb 2019, 23:48
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Difficulty:

5% (low)

Question Stats:

97% (01:24) correct 3% (03:26) wrong based on 30 sessions

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If the sum of two numbers is 19 and their product is 88, what is the difference between the numbers?

A. 2
B. 3
C. 4
D. 5
E. 6

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Joined: 31 Dec 2018
Posts: 18
Location: India
Re: If the sum of two numbers is 19 and their product is 88, what is the  [#permalink]

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28 Feb 2019, 00:07
(x+y)^2-(x-y)^2=4xy
x+y=19
xy=88
substituting values
(x-y)^2=9
x-y=3

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Joined: 18 Aug 2017
Posts: 2454
Location: India
Concentration: Sustainability, Marketing
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Re: If the sum of two numbers is 19 and their product is 88, what is the  [#permalink]

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28 Feb 2019, 06:02
Bunuel wrote:
If the sum of two numbers is 19 and their product is 88, what is the difference between the numbers?

A. 2
B. 3
C. 4
D. 5
E. 6

a+b=19
ab=88
so
a=88b
solve
we get a=11,b=8
difference = 3
IMO B
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Joined: 27 May 2012
Posts: 716
Re: If the sum of two numbers is 19 and their product is 88, what is the  [#permalink]

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07 Mar 2019, 10:04
Archit3110 wrote:
Bunuel wrote:
If the sum of two numbers is 19 and their product is 88, what is the difference between the numbers?

A. 2
B. 3
C. 4
D. 5
E. 6

a+b=19
ab=88
so
a=88b
solve
we get a=11,b=8
difference = 3
IMO B

sorry, did you mean a=$$\frac{88}{b}$$ or a=88b? Please can you check.
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- Stne

Re: If the sum of two numbers is 19 and their product is 88, what is the   [#permalink] 07 Mar 2019, 10:04
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