A) 2
B) 3
C) 4
D) Data inadequate
Correct Answer: C
Solution :
Let the number of pineapples and watermelons be x and y respectively. Then, \[7x+5y=38\] or \[5y=(38-7x)\] Or \[y=\frac{38-7x}{5}\] Clearly, y is a whole number, only when \[(38-7x)\] is divisible by 5. This happens when \[x=4.\]You need to login to perform this action.
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