Answer:
The temperature on Tuesday was 13.3 degrees Celcius, 3 degrees less than that of Monday.
Explanation:
Given that the temperature on Monday was 16.3 degrees Celsius, and the following Tuesday the temperature dropped about 3 degrees, to determine the temperature of that day the following calculation must be made:
16.3 - 3 = X
13.3 = X
Thus, the temperature on Tuesday was 13.3 degrees Celcius, 3 degrees less than that of Monday.