1.

The temperature first rises by \[{{18}^{o}}C\] and then falls by \[{{23}^{o}}C.\] If the initial temperature is \[{{27}^{o}}C.\] What is final temperature?

A.  \[{{22}^{o}}C\]  
B.  \[{{23}^{o}}C\]          
C.  \[{{24}^{o}}C\]                             
D. \[{{25}^{o}}C\]
Answer» B.  \[{{23}^{o}}C\]          


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