Question

The temperature of a room is to be lowered from 50°C at the rate of 6°C every hour. What will be there temperature after 4 hours.​

Answer 1

Answer:

26°C

Step-by-step explanation:

1 hour = 6°C

4 hours = 6°C × 4

4 hours = 24°C

After 4 hours the temperature will be = 50°C - 24°C

= 26°C which is the answer.

Answer 2

Answer:

Given that

Let us assume that the lowered temperature as negative,

Initial temperature = 50°C

Change in temperature per hour = -6°C

Change in temperature after 4 hours = (-6) × 4 = -24°C

∴The final room temperature after 4 hours of freezing process = 50° + (-24°C)

= -10oC

The room temperature 10 hours after the process begins= 26°C

Hope it helps you:)