The operation* represents either addition, subtraction, or : DS Archive
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# The operation* represents either addition, subtraction, or

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Senior Manager
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26 Oct 2007, 22:29
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The operation* represents either addition, subtraction, or multiplication of integers,
what is the value of 1*0?

(1) 0*2=2
(2) 2*0=2
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26 Oct 2007, 22:39
statement 1

0*2 = 2

can be +

sufficient

statement 1

2*0 = 2

can be + or -

insufficient

Do note that the operation / is not in the stem

Senior Manager
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26 Oct 2007, 22:45
Why not (D).

Statment 2

* is either (+) or (-)

So 1*0 is 1.
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26 Oct 2007, 22:48
sidbidus wrote:
Why not (D).

Statment 2

* is either (+) or (-)

So 1*0 is 1.

Yes - I thought we were looking for the operation - (D) it is

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26 Oct 2007, 22:55
But the answer given is (A) . I guess it's wrong
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Re: DS: Set 24 Q 9 [#permalink]

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27 Oct 2007, 00:56
sidbidus wrote:
The operation* represents either addition, subtraction, or multiplication of integers,
what is the value of 1*0?

(1) 0*2=2
(2) 2*0=2

A
Info 1: it has to be +
Info 2: It could be + or -
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27 Oct 2007, 13:03
Why is D the correct answer?

NM...didn't see that we are looking for the value .

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28 Oct 2007, 07:56
KillerSquirrel wrote:
sidbidus wrote:
Why not (D).

Statment 2

* is either (+) or (-)

So 1*0 is 1.

Yes - I thought we were looking for the operation - (D) it is

Interesting!

While we can compute the value of 1*0 on the basis of the two possibilities that choice 2 throws - and incidentally 1-0 and 1+0 are both the same yet had it been some other value for example 1*2 the problem could not have been solved on the basis of 2 alone. Hence I think A is right.
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Re: DS: Set 24 Q 9 [#permalink]

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28 Oct 2007, 08:12
sidbidus wrote:
The operation* represents either addition, subtraction, or multiplication of integers, what is the value of 1*0?

(1) 0*2=2
(2) 2*0=2

D should be a correct one. it is asking the value of 1*0 not the operative sign (+ve, -ve, multiplication, or division).
Re: DS: Set 24 Q 9   [#permalink] 28 Oct 2007, 08:12
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# The operation* represents either addition, subtraction, or

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