A certain fruit stand sold apples for $0.70 e a c h a n d b a n a n a s f o r$ 0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase?

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Solution

The correct option is C 11
Let the customer purchase "B" bananas and "A" apples.
So, 0.7A + 0.5B = 6.30 where A and B both take whole number value.
Trying combinations for A and B:
A = 4 and B = 7 , we have: 0.7 $\times$ 4 + 0.5 $\times$ 7 = 6.3
So, he bought 7 apples and 4 bananas. So, he bought a total of 7+4 = 11 fruits from the shopkeeper.
Option B

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A certain fruit stand sold apples for 0.70eachandbananasfor0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase?

A certain fruit stand sold apples for $0.70 e a c h a n d b a n a n a s f o r$ 0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase?