There are 100 beads in a box. 0.4 of them are silver beads, and the rest are pink and white beads. If there are 37 as many pink beads as white beads. How many white beads are there?
| Silver beads |
Pink beads |
White beads |
Total |
| 2 u |
3 u |
5 u |
| |
3 p |
7 p |
|
0.4 =
410 =
25 Fraction of beads that are pink and white beads
= 1 -
25 =
35 Total number of beads = 5 u
5 u = 100
1 u = 100 ÷ 5 = 20
Number of pink beads and white beads
= 3 u
= 3 x 20
= 60
Number of pink and white beads
= 3 p + 7 p
= 10 p
10 p = 60
1 p = 60 ÷ 10 = 6
Number of white beads
= 7 p
= 7 x 6
= 42
Answer(s): 42
