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What is the price of 1 dozen oranges? I. Price of 2 dozen oranges and 1 dozen banana is $110. II. Price of 3 dozen apples and 1 dozen banana is $170. III. Price of 1 dozen oranges and 1 dozen apples is $95.

Only I and II or only I and III
Only I and III or only II and III
Only I and II or only II and III
Only II and III

Correct Answer:

Explanation:

As per given above statements , we have
Let, the price of 1 dozen oranges, 1 dozen banana and 1 dozen apples be x, y and z, respectively.
I. Price of 2 dozen oranges and 1 dozen banana = $110
⇒ 2x + y = 110
II. Price of 3 dozen apples and 1 dozen banana = $170
⇒ 3z + y = 170
III. Price of 1 dozen oranges and 1 dozen apples = $95
⇒ x + z = 95
we find the price of 1 dozen oranges .So, by combining all, we get the values of x = 45.

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