In a box, 50% of the beads are green, 20% are blue and the rest are brown
- What fraction of the beads is brown? Give your answer in the simplest form.
- There are 621 brown beads in the box. How many beads are there in the box altogether?
(a)
Percentage of beads that are brown
= 100% - 50% - 20%
= 30%
Fraction of beads that are brown
=
30100 =
310 (b)
Number of brown beads = 3 u
3 u = 621
1 u = 621 ÷ 3 = 207
Total number of beads
= 10 u
= 10 x 207
= 2070
Answer(s): (a)
310; (b) 2070