Question

A cooling machine is able to cool the room temperature at the rate of 10 degree Celsius every hour. The cooling machine bring the temperature down from 33 degree Celsius to 13 degree Celsius. How many hours did the machine take

Answer 1

HEY mate here is your answer ..

There is a reduction of temperature by 33-13=30°C

As in the question given that 10°C is decreased in every 1 hour
so time taken to reduce 30°C is

30° C/10°=3 hours(answer)

Hope it helps you.

^_^

Answer 2

Answer: 2 hours

Step-by-step explanation:

Rate = 10°C

The cooling machine decreases the temperature = 33°C to 13°C

= 33 - 13

= 20°C

No. of hours did the machine take to decrease the temperature = 20 / 10

= 2 hours