Question
Tom has some purple and white beads. The total mass of all his beads is 181 g. He has 5 less purple beads than white beads. The average mass of the purple beads is 7 g. The average mass of the white beads is 11 g. How many beads does Tom have altogether?
3 m

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Tom has some purple and white beads. The total mass of all his beads is 181 g. He has 5 less purple beads than white beads. The average mass of the purple beads is 7 g. The average mass of the white beads is 11 g. How many beads does Tom have altogether?