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Source: — Data Sufficiency |
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by Frankenstein » Sat May 21, 2011 2:59 am
from the question, we can conclude that x belongs to [451,549] and y belongs to [351,449].
From (1) : x belongs to [451,499]. So, x+y belongs to [802,948]. So, the closest multiple of 100 can be either 800 or 900
Insufficient
From(2) : y belongs to [351,399]. So, x+y belongs to [802,948]. So, the closest multiple of 100 can be either 800 or 900
Insufficient
Combining (1) & (2); we get x belongs to [451,499] and y belongs to [351,399]. So, x+y belongs to [802,898]. So, the closest multiple of 100 can be either 800 or 900.
Insufficient
So, the answer is E .
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