Answer:
Mass on mars is 150 grams.
Explanation:
We have, mass of a book is 150 grams on the surface of Earth. The amount of matter contained in it is called its mass.
Mass of an object remains constant always. Its value is same in every location.
If the mass of a book on the surface of Earth is 150 grams, then its mass on Mars is also 150 grams. This is because, mass of an object is independent of its location.