If v is the symbol used for image distance and u for object distance then with one reason state what will be the sign for 𝑣 𝑢 in the given case?

Class 10th Science, Question -If v is the symbol used for image distance and u for object distance then with one reason state what will be the sign for 𝑣 𝑢 in the given case?  

Question: If v is the symbol used for image distance and u for object distance then with one reason state what will be the sign for 𝑣 𝑢 in the given case?

The correct answer is : Negative as the image is real and inverted.