S1 alone can do a work in 16 days and S2 alone can do the same work in 80 days. With the help of S3, they finish the same work together in 6 days. In how many days can S3 alone complete the work?

The arrival of which commission in India triggered widespread protests, including mass hartals across the country in 1928?

Which of the following leaders was instrumental in initiating and leading India’s struggle for independence?