Question
PSLE
The airmail rates to two countries are shown. Tiffany sent a letter weighing 77g to Thailand and a letter weighing 31g to India by airmail. How much did she pay altogether?

Mass Thailand India
First 40g $0.85 $1.80
Every additional 20g $0.65 $0.60
2 m

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PSLE
The airmail rates to two countries are shown. Tiffany sent a letter weighing 77g to Thailand and a letter weighing 31g to India by airmail. How much did she pay altogether?

Mass Thailand India
First 40g $0.85 $1.80
Every additional 20g $0.65 $0.60