The table shows the postage rates for posting mail locally and overseas.
Mass |
Local Postage |
Overseas Postage |
First 50 g |
55¢ |
75¢ |
Every additional 10 g |
20¢ |
35¢ |
Ben paid $1.95 for posting a package locally. What was the greatest possible mass of the package that Ben posted?
$1 = 100¢
$1.95 = 1.95 x 100 = 195¢
Amount that Ben paid for the additional sets of 10 g for the local package
= 195 - 55
= 140¢
Number of sets of 10 g that Ben paid for the local package
= 140 ÷ 10
= 14
Mass of 14 sets of 10 g for the local package
= 14 x 10
= 140 g
Greatest possible mass of the local package
= 50 + 140
= 190 g
Answer(s): 190 g