Jen had 18 more beads than Hilda. After Hilda gave away
27 of her beads, Jen had twice as many beads as Hilda. How many beads did Hilda have at first?
| |
Jen |
Hilda |
Comparing Jen and
Hilda at first |
18 more |
|
| Before |
10 u |
7 u |
| Change |
|
- 2 u |
| After |
10 u |
5 u |
Comparing Jen and
Hilda in the end |
2x5 =
10 u |
1x5 =
5 u |
Number of beads that Hilda had in the end is repeated. Make the number of beads that Hilda had in the end the same. LCM of 1 and 5 is 5.
Number of beads that Jen had at first = 10 u
Number of beads that Jen had more than Hilda at first
= 10 u - 7 u
= 3 u
3 u = 18
1 u = 18 ÷ 3 = 6
Number of beads that Hilda had at first
= 7 u
= 7 x 6
= 42
Answer(s): 42
