Question
The mass of a packet of bread flour is 100 g. The mass of a packet of chilli powder is 400 g. Mrs. Lu wants to buy an equal amount of bread flour and chilli powder. What is the least number of packets of bread flour that she should buy?
4 m

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The mass of a packet of bread flour is 100 g. The mass of a packet of chilli powder is 400 g. Mrs. Lu wants to buy an equal amount of bread flour and chilli powder. What is the least number of packets of bread flour that she should buy?