There are 135 beads in a box. 0.4 of them are red beads, and the rest are white and gold beads. If there are 18 as many white beads as gold beads. How many gold beads are there?
| Red beads |
White beads |
Gold beads |
Total |
| 2 u |
3 u |
5 u |
| |
1 p |
8 p |
|
0.4 =
410 =
25 Fraction of beads that are white and gold beads
= 1 -
25 =
35 Total number of beads = 5 u
5 u = 135
1 u = 135 ÷ 5 = 27
Number of white beads and gold beads
= 3 u
= 3 x 27
= 81
Number of white and gold beads
= 1 p + 8 p
= 9 p
9 p = 81
1 p = 81 ÷ 9 = 9
Number of gold beads
= 8 p
= 8 x 9
= 72
Answer(s): 72
