SOLUTION: have you heard this type of question that 21 is divided into 3 equal parts and the sum of their product is ........? divide it into three equal parts

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Question 737704: have you heard this type of question
that 21 is divided into 3 equal parts and the sum of their product is ........?
divide it into three equal parts
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
"...21 is divided into 3 equal parts,..."
21%2F3=7.

"the sum of their product is ........?",
What? The product of WHAT?