There are 190 beads in a basket. 0.2 of them are black beads, and the rest are blue and grey beads. If there are 35 as many blue beads as grey beads. How many grey beads are there?
| Black beads |
Blue beads |
Grey beads |
Total |
| 1 u |
4 u |
5 u |
| |
3 p |
5 p |
|
0.2 =
210 =
15 Fraction of beads that are blue and grey beads
= 1 -
15 =
45 Total number of beads = 5 u
5 u = 190
1 u = 190 ÷ 5 = 38
Number of blue beads and grey beads
= 4 u
= 4 x 38
= 152
Number of blue and grey beads
= 3 p + 5 p
= 8 p
8 p = 152
1 p = 152 ÷ 8 = 19
Number of grey beads
= 5 p
= 5 x 19
= 95
Answer(s): 95
