हिंदी में जवाब दो: The temperature at a hill station was 5 °C at noon. It fell by 3 °C every hour for the next 4 hours. What was the temperature after 4 hours? Represent the change on a number line.
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Step-by-Step Solution
Step 1: Initial Temperature
The problem states that the temperature at noon was 5 °C. This is our starting point for the temperature calculation.
Step 2: Total Temperature Drop
The temperature fell by 3 °C every hour for 4 hours. To find the total drop in temperature, we multiply the hourly drop by the number of hours.
Step 3: Calculate Total Drop
Multiplying 3 °C by 4 hours gives a total temperature drop of 12 °C.
Step 4: Final Temperature
To find the final temperature, we subtract the total temperature drop from the initial temperature.
Step 5: Resulting Temperature
Subtracting 12 °C from 5 °C gives us −7 °C. This is the temperature after 4 hours.