Eva baked cheese, pandan and durian puffs. There were half as many durian puffs as pandan puffs and an equal number of durian puffs as cheese puffs. The cost of each puff is given as shown.
1 durian puff: $1.70
1 pandan puff: $1.50
1 cheese puff: $1.70
If she collected $256 from selling all the puffs, how many pandan puffs were there?
|
Durian |
Pandan |
Cheese |
Ratio of puffs |
1 u |
2 u |
1 u |
Cost of 1 puffs |
$1.70 |
$1.50 |
$1.70 |
Total Value |
1.7 u |
3 u |
1.7 u |
Durian puffs : Pandan puffs : Cheese puffs
1 : 2 : 1
Total amount earned from selling all the puffs
= 1.7 u + 3 u + 1.7 u
= 6.4 u
6.4 u = 256
1 u = 256 ÷ 6.4 = 40
Number of pandan puffs
= 2 u
= 2 x 40
= 80
Answer(s): 80