Solved Questions on Temperature
1. On his birthday, the temperature of Cuba was 31.2°C. The temperature will fall to 12.39°C in a couple of days. What will be the temperature of Cuba now?
a) 8.81°C
b) 18.81°C
c) 18.18°C
d) 81.81°C
Answer: b) 18.81°C
Explanation: Temperature of Cuba = 31.2°C
Temperature falls (decrease) in a couple of days, temperature = 12.39°C
Now, the temperature of Cuba = (31.2 − 12.39)°C
= 18.81°C
2. What is the temperature in Celsius if the temperature is 42.31 K more than the temperature shown on the thermometer?
a) 129.16°C
b) 120°C
c) 128°C
d) 140°C
Answer: a) 129.16°C
Explanation: Temperature shown on the thermometer = 360 K
The room temperature is 42.31 K more than the temperature shown on the thermometer.
Room temperature = 360 K + 42.31 K = 402.31 K
Using [°C] = [K] − 273.15
Room temperature in Kelvin = 402.31 K − 273.15 = 129.16°C
3. The temperature in the morning on my balcony is 21.8°C. It went up by 13.2°C at noon and further went down by 20.3°C in the evening. What is the temperature in the evening?
a) 10.7°C
b) 14.7°C
c) 15.4°C
d) 17.4°C
Answer: b) 14.7°C
Explanation: Temperature in the morning = 21.8°C
Temperature at noon = 21.8°C + 13.2°C
= 35°C
Temperature in the evening = 35°C – 20.3°C
= 14.7°C
4. The temperature was 43.2°C on Sunday. On Monday, It had been dropping by 6.24°C and on Tuesday it was increasing by 8.04°C. What was the temperature in Fahrenheit on Tuesday?
a) 83°F
b) 93°F
c) 103°F
d) 113°F
Answer: d) 113°F
Explanation: Temperature on Sunday = 43.2°C
Temperature on Monday = (43.2 – 6.24) °C
= 36.96°C
Temperature on Tuesday = (36.96 + 8.04) °C
= 45°C
Using [°F] = [°C] × 9/5 + 32
Temperature in fahrenheit on Tuesday = [45°C] × 9/5 + 32
= (81 + 32)°F
= 113°F
5. Which of the following thermometers shows 6°C less than the temperature shown on the given thermometer?
a) 
b) 
c) 
d) 
Answer: d)
Explanation: Each marking shows 2°C on the thermometer.
So, temperature shown on the thermometer = 68°C
Now, 68°C − 6°C = 62°C
Hence, temperature on the thermometer used in the option (d) is 6°C less than the temperature shown in the thermometer.
