AAKASH AITS 14( maths )

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Let x, y are positive integres such that the LCM of x,y is 1000. If the no. of ordered pairs (x,y) is k , then the no. of divisors of 'k' of the form 6n+1, n belogs to N, is
A) 10 B) 2 C) 6 D) 8

#Mathematics #Algebra

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Manmay kumar Mohanty ·2010-04-05 21:08:12

no one yet.......koi to karo ???[2]

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Avinav Prakash ·2010-04-05 21:25:38

ANS:2 ????
IE.(B)

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Lokesh Verma ·2010-04-05 22:36:12

This is a good question..

Think of it like 1000=2³x5³

So either a should be a multiple of 2³ or b should be a multiple of 2³ or both
Same is the case with 5³

Can you solve it using the above hint now?

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Manmay kumar Mohanty ·2010-04-06 02:46:11

Bhaiya mujhe abhi bhi samajh nahin aaya.....[7][7]

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AAKASH AITS 14( maths )

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