How to do guess and check for this question

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primary 5 Maths

How to do guess and check for this question

Date Posted: 6 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

In each line I circled the reason why it's a X in red.

*Note that the number of pens have to be an even number to be divisible by 2.

Hope it helps!

Date Posted: 6 years ago