PSLE Lynn had an equal number of pink and blue beads. She gave 14 pink beads and 10 blue beads to Mary. She gave the remaining beads to Nora. Nora was given 5 pink beads for every 7 blue beads. How many beads did Lynn have at first?
|
Pink |
Blue |
Before |
5 u + 14 |
7 u + 10 |
Change |
- 14 |
- 10 |
After |
5 u |
7 u |
The number of pink and blue beads is equal at first.
5 u + 14 = 7 u + 10
7 u - 5 u = 14 - 10
2 u = 4
1 u = 4 ÷ 2 = 2
Number of pink beads that Lynn had at first
= 5 u + 14
= 5 x 2 + 14
= 10 + 14
= 24
Number of beads that Lynn had at first
= 2 x 24
= 48
Answer(s): 48