Answer: The work Shani did was simply staying at a position for a long time, which was actually 10minutes and holding a torch and book.
Step-by-step explanation:
The work Shani did was simply staying at a position for a long time, which was actually 10minutes and holding a torch and book. There is some amount of work that's required when a human is static at a particular location, this is due to the fact that the weight of her body will be much on the legs and the object she is carrying will have it's share of weight on her hands. This is a work on it's own