1.

The temperature at 12 noon was \[{{10}^{o}}C\] above zero. If it decreases at the rate of \[{{2}^{o}}C\] per hour until midnight, what would be the temperature at 9 p.m.?

A.  \[-{{8}^{o}}C\]                   
B.         \[-{{6}^{o}}C\]
C.  \[{{8}^{o}}C\]                  
D.         \[{{6}^{o}}C\]
Answer» B.         \[-{{6}^{o}}C\]


Discussion

No Comment Found

Related MCQs