Can help me to solve this question? And I need an exlpaination of how to get the

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primary 5 Maths

Can help me to solve this question? And I need an exlpaination of how to get the answer.

Date Posted: 7 years ago

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

This is an application of the concept of common total. But there may be a fault of the number (20) used.

Date Posted: 7 years ago

Cons

3 years ago

Can make it clear thanks