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Source: — Data Sufficiency |
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by cramya » Fri Dec 05, 2008 2:46 pm
Stmt I

x can be 5,10,15,30

lcm of all of the above wiht 6 and 9 is 90

SUFF

Stmt II
x can be 5 or 15 or 45

Again lcm of the above wiht 6 and 9 is 90

SUFF

D)
Last edited by cramya on Sat Dec 06, 2008 12:51 pm, edited 1 time in total.
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by srisl11 » Sat Dec 06, 2008 8:03 am
cramya wrote:Stmt I

x can be 5,10,15

lcm of all of the above wiht 6 and 9 is 90

SUFF

Stmt II
x can be 5 or 15

Again lcm of the above wiht 6 and 9 is 90

SUFF

D)
Thanks Cramya...
Its a wonderful and a simple solution for a very tough problem
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by cramya » Sat Dec 06, 2008 12:54 pm
Thanks Cramya...
Its a wonderful and a simple solution for a very tough problem
Thanks Sris for the nice words!

I actually missed 30 and 45 which I have edited.


The key is finding the factors of 30 and 45 in finding what x could be and then what the lcm with 6 and 9 could be.

1,2,3,5,6,10,15,30 are factors of 30

1,3,5,9,15,45 are factors of 45
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