Mary had 56 more stickers than Yoko. After Yoko gave away
27 of her stickers, Mary had thrice as many stickers as Yoko. How many stickers did Yoko have at first?
| |
Mary |
Yoko |
Comparing Mary and
Yoko at first |
56 more |
|
| Before |
15 u |
7 u |
| Change |
|
- 2 u |
| After |
15 u |
5 u |
Comparing Mary and
Yoko in the end |
3x5 =
15 u |
1x5 =
5 u |
Number of stickers that Yoko had in the end is repeated. Make the number of stickers that Yoko had in the end the same. LCM of 1 and 5 is 5.
Number of stickers that Mary had at first = 15 u
Number of stickers that Mary had more than Yoko at first
= 15 u - 7 u
= 8 u
8 u = 56
1 u = 56 ÷ 8 = 7
Number of stickers that Yoko had at first
= 7 u
= 7 x 7
= 49
Answer(s): 49
