PSLE Abi had an equal number of white and yellow beads. She gave 35 white beads and 11 yellow beads to Mary. She gave the remaining beads to Nora. Nora was given 2 white beads for every 5 yellow beads. How many beads did Abi have at first?
|
White |
Yellow |
Before |
2 u + 35 |
5 u + 11 |
Change |
- 35 |
- 11 |
After |
2 u |
5 u |
The number of white and yellow beads is equal at first.
2 u + 35 = 5 u + 11
5 u - 2 u = 35 - 11
3 u = 24
1 u = 24 ÷ 3 = 8
Number of white beads that Abi had at first
= 2 u + 35
= 2 x 8 + 35
= 16 + 35
= 51
Number of beads that Abi had at first
= 2 x 51
= 102
Answer(s): 102