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by dbart06 » Sat Aug 02, 2008 9:01 am
this is data suff.
1) tells us nothing about j....insuff
2) only tells us that i=j insuff

if we take them together. we only know that i<10 & i=j insuff

IMO ans = E
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by pepeprepa » Sat Aug 02, 2008 9:33 am
1)
i could be odd or even and j could be odd or even
i<10 doesn't help

2)
i+j=i+i=2*i
Every odd or even integer multiplied by 2 is an even integer, it's sufficient.
--> B
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by dbart06 » Sat Aug 02, 2008 9:40 am
silly me.. pepeprepa, you are correct...the little things i overlook
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by pepeprepa » Sat Aug 02, 2008 9:42 am
Just take fast examples it can help
2+2=4
3+3=6
And you see it is even
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