Question

9+10=21 how?
tell with explanation. worth 25 pts

Answer 1

9+10=21

3×3+2×5=21

3×2+3×5=21

6+15=21

Hence proved .

Answer 2

Answer:

yes it is possible but it is some difficult

Step-by-step explanation:

let start

9+10=21

9=3×3. 10=5×2

3×5=15

3×2=6

so ans

15+6=21

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