Question

There are 3 banks in three banks there are 3 watch man's if a person wants to go to the bank he had to give 100 ruppes to watch man when he go to bank his money will become double and when his coming back again he wants to give 100 to that watch man same he will do in three banks and lastly he had 100 ruppes how much money he had the first​

Answer 1

Answer:

Physical science is the study of the inorganic world. That is, it does not study living things. (Those are studied in biological, or life, science.) The four main branches of physical science are astronomy, physics, chemistry, and the Earth sciences, which include meteorology and geology.