How many quarters equal the volume of a piece of paper? A quarter has a diameter of 0.9375 inches, a thickness of 0.0625 inches. The piece of paper is 10.5 by 8(inches), and a thickness of 0.0025.
4.918 quarters approx.
(Volume of paper / Volume of quarter ) gives the number of quarters.
Volume of paper
Volume of quarter
No. of quarters = #V_p / V_q = 0.21 / 0.0427 ~~ 4.918