There are 140 beads in a basket. 0.1 of them are brown beads, and the rest are purple and blue beads. If there are 15 as many purple beads as blue beads. How many blue beads are there?
| Brown beads |
Purple beads |
Blue beads |
Total |
| 1 u |
9 u |
10 u |
| |
1 p |
5 p |
|
0.1 =
110 =
110 Fraction of beads that are purple and blue beads
= 1 -
110 =
910 Total number of beads = 10 u
10 u = 140
1 u = 140 ÷ 10 = 14
Number of purple beads and blue beads
= 9 u
= 9 x 14
= 126
Number of purple and blue beads
= 1 p + 5 p
= 6 p
6 p = 126
1 p = 126 ÷ 6 = 21
Number of blue beads
= 5 p
= 5 x 21
= 105
Answer(s): 105
