Question
Tina used 120 beads to make a bracelet. She used 2 white beads for every 4 black beads to form the following pattern. What was the total number of black beads she used?
3 m

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Tina used 120 beads to make a bracelet. She used 2 white beads for every 4 black beads to form the following pattern. What was the total number of black beads she used?