The number of pandan cakes on display at a cafe was
23 of the number of croissants on display. After 16 pandan cakes were bought and the staff added another 38 croissants, the number of croissants was twice the number of pandan cakes. The last group of customers bought 4 croissants each, finishing all the croissants on display. How many customers were there in the last group?
| |
Pandan cakes |
Croissants |
| Before |
2 u |
3 u |
| Change |
- 16 |
+ 38 |
| After |
2 u - 16 |
3 u + 38 |
Comparing pandan cakes
and croissants
in the end |
1 |
2 |
The number of croissants was twice the number of pandan cakes in the end.
Number of croissants in the end
= 2(2 u - 16)
= 4 u - 32
4 u - 32 = 3 u + 38 4 u - 3 u = 32 + 381 u = 70
1 u = 70 ÷ 1 = 70Number of croissants in the end= 3 u + 38= 3 x 70 + 38= 248Number of customers in the last group= 248 ÷ 4= 62 Answer(s): 62 
