There was an equal number of yellow and red beads in a box at first. After 29 red beads were taken out and 41 yellow beads were added into the box, there was
16 as many red beads as yellow beads. Find the number of red beads in the box at first.
| |
Yellow beads |
Red beads |
| Before |
6 u - 41 |
1 u + 29 |
| Change |
+ 41 |
- 29 |
| After |
6 u |
1 u |
The number of yellow and red beads in the box is the same at first.
6 u - 41 = 1 u + 29
6 u - 1 u = 29 + 41
5 u = 70
1 u = 70 ÷ 5 = 14
Number of red beads at first
= 1 u + 29
= 14 + 29
= 43
Answer(s)43
