A and B, working together, can finish a piece of work in 321 days, while A alone can do it in 535 days. How many days will B alone take to finish the same work?

The Dandi March, also known as the Salt Satyagraha, was led by which influential leader?

Which act formally granted independence to India, marking the end of British rule?

Who was the key figure in establishing the Indian National Congress?