Question
Sam has some white and yellow beads. The total mass of all his beads is 224 g. He has 7 more yellow beads than white beads. The average mass of the white beads is 3 g. The average mass of the yellow beads is 4 g. How many beads does Sam have altogether?
3 m

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Sam has some white and yellow beads. The total mass of all his beads is 224 g. He has 7 more yellow beads than white beads. The average mass of the white beads is 3 g. The average mass of the yellow beads is 4 g. How many beads does Sam have altogether?