Question

Janine wants a necklace 20 beads long. She needs ..... red beads and ..... blue beads.

Answer 1

The possibilities are: 1 red 19 blue 2 red 18 blue 3 red 17 blue 4 red 16 blue 5 red 15 blue 6 red 14 blue 7 red 13 blue 8 red 12 blus 9 red 11 blue 10 red 10 blue 11 red 9 blue 12 red 8 blue 13 red 7 blue 14 red 6 blue 15 red 5 blue 16 red 4 ⎌blue 17 red 3 blu 18 red 2 blue 19 red 1 blue We haven't got enough information to see which it is. We would need a fraction or a ratio to figure this out.

Answer 2

10 red beads

10 blue beads

10 + 10 = 20