Problems 38-59
See Example 4, and keep in mind changing number bases.
Problem 38; hours and days write base 12 base twenty-four to mean one day and two hours.
Problem 39; weeks and days write 12 base seven to mean one week and two days.
Problem 40: pounds and ounces write 12 base sixteen to mean one pound and two ounces.
Problem 41: feet and inches write 12 base twelve to mean one foot and two inches.
Problem 42: quarters, nickels, and pennies write 123 base twenty-five to mean
one quarter, two nickels, and 3 pennies.
Problem 43: gross, dozens, and units write 123 base 12 to mean one gross, two dozen,
and 3 units.
The other problems use one of the above named bases.
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