Gillian made 63 more cream croissants than pandan croissants. After she gave away
27 of the cream croissants and
18 of the pandan croissants, there were an equal number of cream croissants and pandan croissants left. How many cream croissants did she give away?
|
Cream croissants |
Pandan croissants |
Difference |
Before |
7x7 = 49 u |
8x5 = 40 u |
9 u |
Change |
- 2x7 = - 14 u |
- 1x5 = - 5 u |
|
After |
5x7 = 35 u |
7x5 = 35 u |
|
Fraction of cream croissants left
= 1 -
27 =
57Fraction of pandan croissants left
= 1 -
18 =
78The number of cream croissants and pandan croissants in the end is the same. Make the numerators the same. LCM of 7 and 5 is 35.
57 of cream croissants =
78 of pandan croissants
3549 of cream croissants =
3540 of pandan croissants
Number of more cream croissants than pandan croissants at first
= 49 u - 40 u
= 9 u
9 u = 63
1 u = 63 ÷ 9 = 7
Number of cream croissants that Gillian gave away
= 49 u - 35 u
= 14 u
= 14 x 7
= 98
Answer(s): 98