The table shows the postage rates for posting mail locally and overseas.
Mass |
Local Postage |
Overseas Postage |
First 50 g |
45¢ |
55¢ |
Every additional 10 g |
15¢ |
25¢ |
Oliver paid $2.95 for posting a package locally. What was the greatest possible mass of the package that Oliver posted?
$1 = 100¢
$2.95 = 2.95 x 100 = 295¢
Amount that Oliver paid for the additional sets of 10 g for the local package
= 295 - 45
= 250¢
Number of sets of 10 g that Oliver paid for the local package
= 250 ÷ 10
= 25
Mass of 25 sets of 10 g for the local package
= 25 x 10
= 250 g
Greatest possible mass of the local package
= 50 + 250
= 300 g
Answer(s): 300 g