PSLE Kimberly had an equal number of red and brown beads. She gave 26 red beads and 20 brown beads to Mary. She gave the remaining beads to Nora. Nora was given 4 red beads for every 7 brown beads. How many beads did Kimberly have at first?
|
Red |
Brown |
Before |
4 u + 26 |
7 u + 20 |
Change |
- 26 |
- 20 |
After |
4 u |
7 u |
The number of red and brown beads is equal at first.
4 u + 26 = 7 u + 20
7 u - 4 u = 26 - 20
3 u = 6
1 u = 6 ÷ 3 = 2
Number of red beads that Kimberly had at first
= 4 u + 26
= 4 x 2 + 26
= 8 + 26
= 34
Number of beads that Kimberly had at first
= 2 x 34
= 68
Answer(s): 68