Esther baked durian, mocca and banana biscuits. There were one-quarter as many banana biscuits as mocca biscuits and an equal number of banana biscuits as durian biscuits. The cost of each biscuit is given as shown.
1 banana biscuit: $1.70
1 mocca biscuit: $1.50
1 durian biscuit: $1.30
If she collected $189 from selling all the biscuits, how many mocca biscuits were there?
|
Banana |
Mocca |
Durian |
Ratio of biscuits |
1 u |
4 u |
1 u |
Cost of 1 biscuits |
$1.70 |
$1.50 |
$1.30 |
Total Value |
1.7 u |
6 u |
1.3 u |
Banana biscuits : Mocca biscuits : Durian biscuits
1 : 4 : 1
Total amount earned from selling all the biscuits
= 1.7 u + 6 u + 1.3 u
= 9 u
9 u = 189
1 u = 189 ÷ 9 = 21
Number of mocca biscuits
= 4 u
= 4 x 21
= 84
Answer(s): 84