7. Two marks exercise problems II

1. The product of two integers is $135$. If one number is $-15$, find the other integer.

 

Other integer $=$

 

 

2. In $8$ hours duration, with uniform decrease in temperature, the temperature dropped $24^\circ C$. How many degrees did the temperature drop each hour?

 

Temperature drop at every hour $=$ $^\circ C$