he temperature at noon at a certain place was 12degrees above zero. If

1.	he temperature at noon at a certain place was 12degrees above zero. If it decreases at the rate of2 degrees per hour until midnight, at what time
Answer» aThe temperature decreases at a rate of 2degrees per hour It was actually 12 degree above zero We need to find at what time does the the temperature drops down to 10 degree below zero that is -10 Temperature change = 12-(-10) =12+10 =22 For one hour it drops by 2degree So it takes 22/2=11hours to attain -10 degree It means, at 11'o clock e temperature falls down to -10 degree

he temperature at noon at a certain place was 12degrees above zero. If it decreases at the rate of2 degrees per hour until midnight, at what time

Answer»

aThe temperature decreases at a rate of 2degrees per hour

It was actually 12 degree above zero

We need to find at what time does the the temperature drops down to 10 degree below zero that is -10

Temperature change = 12-(-10)

=12+10

=22

For one hour it drops by 2degree

So it takes 22/2=11hours to attain -10 degree

It means, at 11'o clock e temperature falls down to -10 degree