Question
Cost of 8 dozen of bananas is $10. Cost of 24 dozen of bananas is ___________.
- 10
- 30
- 20
- 40
Hint:
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
The correct answer is: 30
Here, it is given that the cost of 8 dozen bananas is $10. We have to find the cost of 24 dozen bananas.
Cost of 8 dozen bananas = $10.
Cost of 1 dozen banana = 10/8.
Cost of 24 dozen bananas = 10⁄8 × 24 = $30.
Hence, the correct option is B.
We can multiply the cost of 8 dozen bananas by 3 and get the cost of 24 dozen bananas.
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