Question

an AC cools the room at the rate of 5 degree C per hour.what would be the final temperature of the room after 6 hour,if the initial temperature of the room is 40 degree C​

Answer 1

Answer:

70

Step-by-step explanation:

Temperature increases 5°C in every 1 hr

After 6 hr the temperature will be

6×5=30°C

A.T.Q

If the initial temperature is 40°C

40+30=70°C

Answer 2

Answer:

Rate of cooling= 5°C/hr.

Therefore,

Temperature in 1 hr. = 5°C

Temperature in 6 hrs.= 30°C

Since, the initial temperature of the room was 40°C.

Therefore,

Present temp.= (40-30)°C= 10°C

The temp. is subtracted because the AC is cooling or lowering tge temperature....

Therefore, the corrext answer will be 10°C.

Hope you will understand....Thank You........