Read the passage given below and answer the questions in a complete sentence in Math HW notebook:
Samira went to Big Bazaar with her mother at 6:00 pm for buying her birthday dress. After shopping for 1 hour, they went to the park and returned home at 7:30 pm.
1. At what time they went to the park?
2. How much time did they spend in the park?
3. Find out the total time they spent away from home.