question_answer

Temperature of a place at 07 : 00 in the morning was \[-15{}^\circ \,\,C.\] Temperature increases by \[3{}^\circ \,\,C\] in first hour and decreases by \[1{}^\circ C\] in the second hour. What would be the temperature at 09 : 00 AM?

A)  \[-11{}^\circ \,\,C\]                  

B)  \[-13{}^\circ \,\,C\]

C)  \[-21{}^\circ \,\,C\]                  

D)  \[-17{}^\circ \,\,C\]

E)  None of these