Question
PSLE
The airmail rates to two countries are shown. Irene sent a letter weighing 84g to Indonesia and a letter weighing 28g to China by airmail. How much did she pay altogether?

Mass Indonesia China
First 30g $0.65 $1.80
Every additional 15g $0.35 $0.70
2 m

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PSLE
The airmail rates to two countries are shown. Irene sent a letter weighing 84g to Indonesia and a letter weighing 28g to China by airmail. How much did she pay altogether?

Mass Indonesia China
First 30g $0.65 $1.80
Every additional 15g $0.35 $0.70