Question

Lisa used the rule "Red, Yellow, Yellow, Yellow" to make a bracelet with a repeating pattern. She

used 21 yellow beads. How many beads did Lisa use to make the bracelet? How many beads were
NOT yellow?
Lisa used beads to make the bracelet, of which were not yellow

Answer 1

28 beads were used to make the bracelet. 7 beads were not yellow.

Explanation:

3/4 beads used to make the bracelet are yellow

If 21 beads are 3/4 of the bracelet and yellow

1/3 of the 21 beads would be 1/4 of the bracelet

7 beads are 1/3 of 21 beads

7 × 4 = 28 beads