Multiple choice At what temperature are Centigrade and Fahrenheit scales same? 300c 400c 500c 60<sup style="font-family:">0c Reveal answer Fill a bubble to check yourself B Correct answer Explanation The Celsius and Fahrenheit scales intersect at -40 degrees, meaning -40°C equals -40°F. This can be derived from the conversion formula C = (F - 32) × 5/9. Setting C = F and solving gives the unique intersection point.