Is x less than 20? 1) The sum of x and y is less than 20 2)

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Is x less than 20? 1) The sum of x and y is less than 20 2) [#permalink]

09 Aug 2007, 12:08

Is x less than 20?

1) The sum of x and y is less than 20

2) y is less than 20

I thought working together they would be sufficient but they are not.[/quote]

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09 Aug 2007, 12:13

1. x + y < 20

x could be 25 and y could be -6. so insufficient

2. y < 20

again, x could be 25 and y could be -6. so insufficient

E is your answer.

now it could be C if they said the numbers were all positive integers, but they don't say that.

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Re: GMAT PREP 6 [#permalink]

10 Aug 2007, 16:25

nfa1rhp wrote:

Is x less than 20?

1) The sum of x and y is less than 20

2) y is less than 20

I thought working together they would be sufficient but they are not.

[/quote]

E. could be tempting but is not correct...

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Re: GMAT PREP 6 [#permalink]

10 Aug 2007, 17:01

Fistail wrote:

nfa1rhp wrote:

Is x less than 20?

1) The sum of x and y is less than 20

2) y is less than 20

I thought working together they would be sufficient but they are not.

E. could be tempting but is not correct...[/quote]

How could E possibly not be correct?

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Re: GMAT PREP 6 [#permalink]

10 Aug 2007, 19:04

Robin in NC wrote:

Fistail wrote:

nfa1rhp wrote:

Is x less than 20?

1) The sum of x and y is less than 20

2) y is less than 20

I thought working together they would be sufficient but they are not.

could be tempting but is not correct...

How could E possibly not be correct?

E. C could be tempting but is not correct... :wink:

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12 Aug 2007, 00:31

Is x less than 20?

1) The sum of x and y is less than 20

2) y is less than 20

obviously each alone is not suff

1) x+y<20
2) y<20

together

x+2y<40

x<40 - 2y

STILL Y COULD BE +VE OR -VE

E is the answer

[#permalink] 12 Aug 2007, 00:31

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Is x less than 20? 1) The sum of x and y is less than 20 2)

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Is x less than 20? 1) The sum of x and y is less than 20 2)

Is x less than 20? 1) The sum of x and y is less than 20 2)

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