निर्देश: खालील आकृतीचा अभ्यास करा आणि त्यावर आधारित प्रश्नांची उत्तरे द्या.

We need regions inside the train circle that are also in the car triangle or the bus rectangle, but outside the cycle shape. These are 50 (train and bus), 10 (train, bus and car) and 20 (train and car). Total = 50 + 10 + 20 = 80.