Question

A certain freezing process requires that room temperature be lowered from 60°C at the rate of 4°C every

hour. What will be the room temperature 15 hours after the process begins?​

Answer 1

Answer:

60-4-4-4-4-4-4-4-4-4-4-4-4-4-4-4

=60-(4*5)

=60-60

=0°C

Answer 2

Answer:

Initial temperature = 60 ° celcius

Rate of changes in temperature = 4° C / per hour

Time = 15 hours

So , in 15 hours the temperature would be decreased by 15 * 4 = 60 ° C

So final temperature = 60 - 60 = 0 ° C