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The positive integers `p ,q` and `r` all are prime if `p^2-q^2=r` , then possible value of `r` is `3` (b) 5 (c) 7 (d) 1

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If two positive integers a and b are expressible in the form a=p q^2 and b=p^3q ; p ,\ q being prime numbers, then LCM (a ,\ b) is (a) p q (b) p^3q^3 (c) p^3q^2 (d) p^2q^2

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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