The table shows the postage rates for posting mail locally and overseas.
Mass |
Local Postage |
Overseas Postage |
First 70 g |
55¢ |
65¢ |
Every additional 10 g |
20¢ |
30¢ |
Flynn paid $3.45 for posting a package locally. What was the greatest possible mass of the package that Flynn posted?
$1 = 100¢
$3.45 = 3.45 x 100 = 345¢
Amount that Flynn paid for the additional sets of 10 g for the local package
= 345 - 55
= 290¢
Number of sets of 10 g that Flynn paid for the local package
= 290 ÷ 10
= 29
Mass of 29 sets of 10 g for the local package
= 29 x 10
= 290 g
Greatest possible mass of the local package
= 70 + 290
= 360 g
Answer(s): 360 g