There are 112 beads in a box. 0.5 of them are pink beads, and the rest are red and blue beads. If there are 17 as many red beads as blue beads. How many blue beads are there?
| Pink beads |
Red beads |
Blue beads |
Total |
| 1 u |
1 u |
2 u |
| |
1 p |
7 p |
|
0.5 =
510 =
12 Fraction of beads that are red and blue beads
= 1 -
12 =
12 Total number of beads = 2 u
2 u = 112
1 u = 112 ÷ 2 = 56
Number of red beads and blue beads
= 1 u
= 1 x 56
= 56
Number of red and blue beads
= 1 p + 7 p
= 8 p
8 p = 56
1 p = 56 ÷ 8 = 7
Number of blue beads
= 7 p
= 7 x 7
= 49
Answer(s): 49
