22. Jerry was
1Textbooks are to be ordered in the following
3as young as his grandfather 15 years
ago. If the sum of their ages is 110, how old is
quantities:
Jerry’s grandfather?
History: 24 books at $20 each
a. 80
Math: 20 books at $30 each
b. 75
Science: 15 books at $25 each
c. 65
d. 60
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