There are 120 beads in a bag. 0.4 of them are purple beads, and the rest are pink and silver beads. If there are 15 as many pink beads as silver beads. How many silver beads are there?
| Purple beads |
Pink beads |
Silver beads |
Total |
| 2 u |
3 u |
5 u |
| |
1 p |
5 p |
|
0.4 =
410 =
25 Fraction of beads that are pink and silver beads
= 1 -
25 =
35 Total number of beads = 5 u
5 u = 120
1 u = 120 ÷ 5 = 24
Number of pink beads and silver beads
= 3 u
= 3 x 24
= 72
Number of pink and silver beads
= 1 p + 5 p
= 6 p
6 p = 72
1 p = 72 ÷ 6 = 12
Number of silver beads
= 5 p
= 5 x 12
= 60
Answer(s): 60
