42 cups pounds and pints are different kinds of measurements.
21 pints
That is 42 half pints
21 cups equates to 10.5 pints (US measure).
There are 42 cups in 21 pints. One pint is equal to 2 cups. So, to find the number of cups in 21 pints, you can multiply 21 pints by 2 cups.
168 pints is 21 gallons (US).
Since there are 8 pints in a gallon - the answer is 161
There are two pints in a quart. That would be 10.5 quarts.
(21 quarts) x (2 US pints per quart) = 42 US pints
There are 21 quarts in 42 pints. One quart is equivalent to 2 pints.
21 qts
21 pounds = 9.525 kilograms.
21 pounds = 336 ounces