Question
The mass of a box and one packet of yams is 1240 g. The mass of the same box and 5 similar packets of yams is 2520 g. What is the mass of a packet of yams?
4 m

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The mass of a box and one packet of yams is 1240 g. The mass of the same box and 5 similar packets of yams is 2520 g. What is the mass of a packet of yams?