The table shows the postage rates for posting mail locally and overseas.
Mass |
Local Postage |
Overseas Postage |
First 60 g |
40¢ |
85¢ |
Every additional 10 g |
15¢ |
35¢ |
Ryan paid $2.25 for posting a package overseas. What was the greatest possible mass of the package that Ryan posted?
$1 = 100¢
$2.25 = 2.25 x 100 = 225¢
Amount that Ryan paid for the additional sets of 10 g for the overseas package
= 225 - 85
= 140¢
Number of sets of 10 g that Ryan paid for the overseas package
= 140 ÷ 10
= 14
Mass of 14 sets of 10 g for the overseas package
= 14 x 10
= 140 g
Greatest possible mass of the overseas package
= 60 + 140
= 200 g
Answer(s): 200 g