Question
Seth has some black and yellow beads. The total mass of all his beads is 240 g. He has 2 less black beads than yellow beads. The average mass of the black beads is 6 g. The average mass of the yellow beads is 8 g. How many beads does Seth have altogether?
3 m

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Seth has some black and yellow beads. The total mass of all his beads is 240 g. He has 2 less black beads than yellow beads. The average mass of the black beads is 6 g. The average mass of the yellow beads is 8 g. How many beads does Seth have altogether?