Abi had 30 more stamps than Victoria. After Victoria gave away
25 of her stamps, Abi had five times as many stamps as Victoria. How many stamps did Victoria have at first?
| |
Abi |
Victoria |
Comparing Abi and
Victoria at first |
30 more |
|
| Before |
15 u |
5 u |
| Change |
|
- 2 u |
| After |
15 u |
3 u |
Comparing Abi and
Victoria in the end |
5x3 =
15 u |
1x3 =
3 u |
Number of stamps that Victoria had in the end is repeated. Make the number of stamps that Victoria had in the end the same. LCM of 1 and 3 is 3.
Number of stamps that Abi had at first = 15 u
Number of stamps that Abi had more than Victoria at first
= 15 u - 5 u
= 10 u
10 u = 30
1 u = 30 ÷ 10 = 3
Number of stamps that Victoria had at first
= 5 u
= 5 x 3
= 15
Answer(s): 15
