Aton is a measure of volume frequently used in shipping, but that use requires some care because there are at least three types of tons: a displacement ton is equal to 7 barrels bulk, a freight ton is equal to 8 barrels bulk, and a register ton is equal to 20 barrels bulk. a barrel bulk is another measure of volume: 1 barrel bulk = 0.1415 m3. suppose you spot a shipping order for "71 tons" of m& m candies, and you are certain that the client who sent the order intended "ton" to refer to volume (instead of weight or mass, as discussed in chapter 5). if the client actually meant displacement tons, how many extra u. s. bushels of the candies will you erroneously ship if you interpret the order as (a)71 freight tons and (b)71 register tons? (1 m3 = 28.378 u. s. bushels.)