There are 16 x 2000 = 32000 ounces in one ton. Therefore, 6400 ounces is equal to 6400/32000 = 0.2 tons.
.2 TONS, according to Google. http://www.google.com/search?source=ig&hl=en&rlz=&=&q=convert+6400+ounces+to+tons&btnG=Google+Search&aq=f&oq=
400 of them because 6400/16 = 400
6,400 pounds is 3.2 tons.
6400.
400 pounds = 6400 ounces
9.67 tons = 309,440 ounces.
42,000 ounces is 1.31 tons.
518,400 ounces is 16.2 tons.
224,000 ounces is seven tons.
3 tons = 96,000 ounces
224,000 ounces is seven tons.