The number of apples that Donald sold will be 50 apples.
Let the number of apples be represented by a
Let the number of oranges be represented by y
Based on the information given, the equation to solve the question will be:
a + y = 170 ....... i
a + 0.50y = 110 ....... ii
Subtract equation ii from i
0.50y = 60
Divide both side by 0.50
0.50y/0.50 = 60/0.50
y = 120
The number of oranges sold is 120
Apples sold will be:
a + y = 170
a = 170 - y
a = 170 - 120
a = 50
Therefore, 50 apples were sold.
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