PSLE Kimberly had an equal number of green and red beads. She gave 40 green beads and 34 red beads to Mary. She gave the remaining beads to Nora. Nora was given 5 green beads for every 8 red beads. How many beads did Kimberly have at first?
|
Green |
Red |
Before |
5 u + 40 |
8 u + 34 |
Change |
- 40 |
- 34 |
After |
5 u |
8 u |
The number of green and red beads is equal at first.
5 u + 40 = 8 u + 34
8 u - 5 u = 40 - 34
3 u = 6
1 u = 6 ÷ 3 = 2
Number of green beads that Kimberly had at first
= 5 u + 40
= 5 x 2 + 40
= 10 + 40
= 50
Number of beads that Kimberly had at first
= 2 x 50
= 100
Answer(s): 100