Three girls used the same number of seashells to make necklaces. Zara used
35 of her seashells, Jade used
25 of hers and Yen used
23 of hers. They had a total of 136 seashells at first. How many seashells did each girl use?
Make the numerators the same.
LCM of 3, 2 and 2 = 6
35 Zara's seashells =
25 Jade's seashells =
23 Yen's seashells
3x25x2 Zara's seashells =
2x35x3 Jade's seashells =
2x33x3 Yen's seashells
610 Zara's seashells =
615 Jade's seashells =
69 Yen's seashells
|
Zara |
Jade |
Yen |
Before |
10 u |
15 u |
9 u |
Change |
- 6 u |
- 6 u |
- 6 u |
After |
4 u |
9 u |
3 u |
Total number of seashells at first
= 10 u + 15 u + 9 u
= 34 u
34 u = 136
1 u = 136 ÷ 34 = 4
Number of seashells that each girl used
= 6 u
= 6 x 4
= 24
Answer(s): 24