Question
PSLE
The airmail rates to two countries are shown. Diana sent a letter weighing 78g to Laos and a letter weighing 25g to India by airmail. How much did she pay altogether?

Mass Laos India
First 30g $0.75 $1.30
Every additional 15g $0.45 $0.35
2 m

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PSLE
The airmail rates to two countries are shown. Diana sent a letter weighing 78g to Laos and a letter weighing 25g to India by airmail. How much did she pay altogether?

Mass Laos India
First 30g $0.75 $1.30
Every additional 15g $0.45 $0.35