PSLE Elyse had an equal number of blue and grey beads. She gave 27 blue beads and 11 grey beads to Mary. She gave the remaining beads to Nora. Nora was given 4 blue beads for every 6 grey beads. How many beads did Elyse have at first?
|
Blue |
Grey |
Before |
4 u + 27 |
6 u + 11 |
Change |
- 27 |
- 11 |
After |
4 u |
6 u |
The number of blue and grey beads is equal at first.
4 u + 27 = 6 u + 11
6 u - 4 u = 27 - 11
2 u = 16
1 u = 16 ÷ 2 = 8
Number of blue beads that Elyse had at first
= 4 u + 27
= 4 x 8 + 27
= 32 + 27
= 59
Number of beads that Elyse had at first
= 2 x 59
= 118
Answer(s): 118