Going shopping for the family

One day Rahuls mom asked Rahul to buy some vegetable from the shop near by, He has never been to shop alone, he was little anxious about going alone. Rahul took his mobile phone, his mom asked him to call once he reaches the shop. Rahul watched for vehicles while crossing the road, reached the shop, called his mom and informed that he reached the shop. He bought 1 kg of potato, onion, tomato each. Shopkeeper asked him to pay Rs.50. Rahul gave Rs.50, came home carefully. Evening he proudly shared with his dad that he bought vegetables from the shop independently.