Stacy has 5 balls and Ben has 6 balls. Which of the following options is correct?
A
None of the above is correct.
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B
Stacy has an odd number of balls.
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C
Both a and b are correct.
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D
Ben has an even number of balls.
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Solution
The correct option is C Both a and b are correct. Stacy has 5 balls.
When we group 5 balls in pairs, one ball gets left out.
We cannot group all 5 balls in pairs.
So, Stacy has an odd number of balls.
Ben has 6 balls.
We can group all 6 balls in pairs
So, Ben has an even number of balls.