the volume of a prism is b×h, the base of the prism is 10×6 which is 60, multiplied by the height of 4 gives you 240 cubed centimeters, or 240 cm^3.
the surface area is 184 because the base has an area of 60, the sides have an area of 50 each, and the triangles at the front and back have a surface area of 12 each. added all together, you get 184 cm^2.
1 and a half times because 10 goes in to 25 two times but 10 can't go into 25 so you will get 5 left and 10 - 5 is 5 and 5 tenth makes a half so the answer is, 1 and a half times