Gwen, Linda and Marion were playing with beads. Gwen started with 80 beads and in the first game, she won
12 more beads from Linda. In the second game, Gwen lost
18 of her original number of beads to Marion. Linda lost as many beads as Gwen to Marion. In the final game, Gwen won
15 of her original number of beads from Linda. All of them ended up with the same number of beads.
- How many beads did Gwen have in the end?
- How many beads did Linda have at first?
|
Gwen |
Linda |
Marion |
Before |
80 |
|
|
First game |
+ 40 |
- 40 |
|
Second game |
- 10 |
|
+ 10 |
|
|
- 10 |
+ 10 |
Final game |
+ 16 |
- 16 |
|
After |
1 u |
1 u |
1 u |
(a)
Number of beads that Gwen won from Linda
=
12 x 80
= 40
Number of beads that Gwen lost to Marion
=
18 x 80
= 10
Number of beads that Gwen won from Linda
=
15 x 80
= 16
Number of beads that Gwen had in the end
= 80 + 40 - 10 + 16
= 126
(b)
Number of beads that Linda had at first
= 1 u + 16 + 10 + 40
= 126 + 16 + 10 + 40
= 192
Answer(s): (a) 126 ; (b) 192