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Stocks

stock market

Answer :
GOOG -  $30 - 5% increase
IBM - $40 - 25% increase
BSC -  $20 - 45% increase
TWX -  $50 - 15% decrease
WMT -  $10 - 35% decrease

How to find answer:
GOOG increased by 5% (hint 3), and the $20 stock by 45% (hint 4).
IBM was purchased for $40 (hint 5), therefore it is not either of the two that decreased in value (hint 2);
therefore it increased by 25%
WMT was not bought for $30 or $50 (hint 2), nor for $20 (hints 2 and 4), therefore it was purchased for $10; it didn't lose 15% (hint 1), it lost 35% (hint 2).
The $50 stock lost 15% (hint 2), so by elimination GOOG was purchased for $30.
TWX was not purchased for $20 (hint 4), it was purchased for $50, and by elimination BSC was purchased for $20. 



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