This is easy 9=10 * 9, 8=9 * 8,7=8 * 7 so 4=5 * 4.. Therefore 4=20.
RE: Funny arithmetic question
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Funny arithmetic question
Funny arithmetic question
This is easy 9=10 * 9, 8=9 * 8,7=8 * 7 so 4=5 * 4.. Therefore 4=20.