Question 159142
4*4*4=64 cubic inches.
area of washer=pir^2=3.14[(5/8)/2]^2=3.14*5/16^2=3.14*25/256=.3066 cubic inches.
hole=pir^2=3.14*[(1/4)/2]^2=3.14*1/8^2=3.14*1/64=.049 cubic inches.
volume of washer=.3066-.049=.2576 cubic inches.
64/.2576=248.45 washer can be made.