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Question

A group of students ordered 4 small and 6 medium burgers. The total amount paid by the students is given. Calculate the cost of each type of burger.

Size of burgerTotal priceSmall$20Medium$48

A
Small =$6, Medium =$4
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B
Small =$4, Medium =$6
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C
Small =$5, Medium =$8
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D
Small =$8, Medium =$5
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Solution

The correct option is C Small =$5, Medium =$8
For small burgers,
Number of burgers ordered =4
Total price paid =$20

Let the unknown number be s.
Since 20 is the greatest number, it must be the product of the unknown number and 4.
s×4=20
s=20÷4=5
s=5
The unknown number is equal to 5.

Thus. the price of each small burger is $5

For medium burgers,
Number of burgers ordered =6
Total price paid =$48

Let the unknown number be t.
Since 48 is the greatest number, it must be the product of the unknown number and 6.
t×6=48
t=48÷6=8
t=8
The unknown number is equal to 8.

Thus, price of each medium burger is $8.

Hence, option A is is correct.

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