Abi had 88 more stickers than Mary. After Mary gave away
25 of her stickers, Abi had thrice as many stickers as Mary. How many stickers did Mary have at first?
| |
Abi |
Mary |
Comparing Abi
and Mary at first |
88 more |
|
| Before |
9 u |
5 u |
| Change |
|
- 2 u |
| After |
|
3 u |
Comparing Abi
and Mary in the end |
3x3 =
9 u |
1x3 =
3 u |
The number of stickers that Abi had at first and in the end remains unchanged. Make the number of stickers that Abi had the same. LCM of 9 and 3 is 9.
Number of stickers that Abi had more than Mary at first
= 9 u - 5 u
= 4 u
4 u = 88
1 u = 88 ÷ 4 = 22
Number of stickers that Mary had at first
= 5 u
= 5 x 22
= 110
Answer(s): 110
