Answer:
The temperature on the thermometer is 26°C
Explanation:
The image is very clear.
To answer this question you need to know the scale of the thermometer.
As between 20 and 30 there are 5 "spaces" (four lines) , we should divide
10 (the difference between 30 and 20) by 5.
10/5= 2
So each line means 2 °C
As there are 3 lines painted in red after 20, the answer is:
20+3*2= 26°C