Question
Tim has some gold and purple beads. The total mass of all his beads is 245 g. He has 4 less gold beads than purple beads. The average mass of the gold beads is 7 g. The average mass of the purple beads is 14 g. How many beads does Tim have altogether?
3 m

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Tim has some gold and purple beads. The total mass of all his beads is 245 g. He has 4 less gold beads than purple beads. The average mass of the gold beads is 7 g. The average mass of the purple beads is 14 g. How many beads does Tim have altogether?