pls solve

p,q â‚¬ I such that p² + q² =30q² +517 then the value of 3p²q² will be????

a 169

b 488

c 588

d 688

5 Answers

answer is 588

as p,q are integers so value of 3p²q² must be divisible by 3
so the answer must be divisible by 3

Are u sure the qsn is correct? Because as it is, without any solution one can see p²>517.

So 3p²>3.517=1551.

i was a bit hazy.. am sorry ..

341

Hari Shankar ·2010-05-01 18:43:12

also, one of p or q is divisible by 3.

it can b some fractional value of q n integral value of p...but since in the question its already given p,q r integers, there cant b ne solns

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