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Odd/Even

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Odd/Even

by rarns » Thu Jun 16, 2011 5:32 pm
What is the remainder when n is divided by 4?

1) n is the square of an odd integer

2) n is a multiple of 3

MGMAT answer is A. But, if n = 1 then the remainder is 4, whereas with any other odd integer the remainder is 1. Is this an oversight on the part of MGMAT or am I missing something?
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by sidvenki » Thu Jun 16, 2011 5:59 pm
Hi Rarns,

When 1 is divided by 4, the remainder is 1 and quotient is 0.

Think you've done a silly mistake.

Sid
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by amit2k9 » Thu Jun 16, 2011 8:39 pm
1 remainder = 1 always. 1^2 = 1 3^2= 9 5^2 = 25. sufficient.

2 3*0 = 0 remainder = 0 ; 3*2 = 6 remainder = 2 and so on.

Hence A it is.
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