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Mark went to buy an equal number of apples and oranges.
The apples were 5 for $3 and the cost of 2 oranges was $3.30.
He paid $31.50 more for the oranges than for the apples.
How many oranges and apples did he buy altogether.
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The apples were 5 for $3.00, or $0.60 each.
The oranges were 2 for $3.30, or $1.65 each.
x oranges and x apples (an equal number).
0.60x dollars for x apples and 1.65x dollars for x oranges.
The difference in cost was 31.50 dollars
1.65x - 0.60x = 31.50 dollars.
It is your basic equation.
To solve it, simplify
1.05x = 31.50
x = 31.50/1.05 = 30.
ANSWER. 30 apples and 30 oranges, or 30+30 = 60 fruits altogether.
Solved.