Three girls used the same number of pearls to make necklaces. Irene used
25 of her pearls, Kylie used
34 of hers and Jaslyn used
23 of hers. They had a total of 320 pearls at first. How many pearls did each girl use?
Make the numerators the same.
LCM of 2, 3 and 2 = 6
25 Irene's pearls =
34 Kylie's pearls =
23 Jaslyn's pearls
2x35x3 Irene's pearls =
3x24x2 Kylie's pearls =
2x33x3 Jaslyn's pearls
615 Irene's pearls =
68 Kylie's pearls =
69 Jaslyn's pearls
| |
Irene |
Kylie |
Jaslyn |
| Before |
15 u |
8 u |
9 u |
| Change |
- 6 u |
- 6 u |
- 6 u |
| After |
9 u |
2 u |
3 u |
Total number of pearls at first
= 15 u + 8 u + 9 u
= 32 u
32 u = 320
1 u = 320 ÷ 32 = 10
Number of pearls that each girl used
= 6 u
= 6 x 10
= 60
Answer(s): 60
