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# What is the value of a + b ?

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Re: What is the value of a + b ? [#permalink]
Bunuel wrote:
What is the value of a + b ?

(1) a - b = 3

(2) a * b = 2

Statement 1

say a = 6, b = 3, then a-b = 3; a+b= 9
a= 12, b= 9, then a-b = 3, a+b= 21.

Not sufficient.

Statement 2

say a = 2, b = 1, then ab= 2, a+b= 3
a= 4, b= 0.5, then ab = 2; a+b= 4.5

Not sufficient.

[b]Combining Statement 1 and 2/b]

(1) a - b = 3
(2) a * b = 2

$$(a+b)^2$$ = $$(a-b)^2$$+ 4ab

We can get the value of $$(a+b)^2$$ but not exact value of (a+b). [ There will be 2 value of (a+b)

So Not Sufficient.

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Re: What is the value of a + b ? [#permalink]
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Re: What is the value of a + b ? [#permalink]
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