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by ketkoag » Fri Jun 19, 2009 1:05 pm
if the average(arithmetic mean) of 4 numbers is 50, how many of the numbers are greater than 50?
1) none of the 4 numbers is 50.
2) two of the numbers are equal to 25.

my answer is E. please confirm the answer.
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Source: — Data Sufficiency |
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by cramya » Fri Jun 19, 2009 7:35 pm
Agree

Stmt II

25 25 75 75 - >ans is 2
25 25 140 10-> ans 1

INSUFF

Stmt I

Use same examples as above to save time just as if stmt II dint exist when evaluting this and this happens to satosfy our 1st condn none of the numbers are 50

INSUFF

TOGETHER

E
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