Jane gave 10% of her collection of beads to Ivory thereby increasing Ivory's collection by 24%. If Jane had 54 beads left, how many beads did Ivory have at first?
| |
Jane's beads |
Ivory's beads |
| Before |
100% |
100 u |
| Change |
- 10% |
+ 10% = + 24 u |
| After |
90% |
124 u |
90% of Jane's collection = 54
1% of Jane's collection = 54 ÷ 90 = 0.6
10% of Jane's collection = 10 x 0.6 = 6
24 u of Ivory's collection = 6
1 u of Ivory's collection =
625 = 0.25
100 u of Ivory's collection = 100 x 0.25 = 25
Answer(s): 25
