Question
PSLE
The airmail rates to a country are shown.
Type Mass Cost

Letters

First 6 g 27s¢
Every additional 3 g or less 11s¢
Postcards Per piece 60¢

Oscar sent 3 postcards and a letter. The letter weighed 11 g. How much did Oscar pay in total? Give your answer in terms of s in the simplest form.
2 m

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PSLE
The airmail rates to a country are shown.
Type Mass Cost

Letters

First 6 g 27s¢
Every additional 3 g or less 11s¢
Postcards Per piece 60¢

Oscar sent 3 postcards and a letter. The letter weighed 11 g. How much did Oscar pay in total? Give your answer in terms of s in the simplest form.