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What Number Is 25% Of 36? [Solved]

25 percent of 36 is 9.

number 0 1 4 9 16 25 36 49 64 81 100

This Concise video explains the preparation tips, with which, you can

Number blocks sneeze 81 49 25 9 1 100 64 36 16 4

Is it possible to

Puzzle: Is 36 the only triangle-square number?

If you do find other triangle-square numbers, and/or a pattern behind them, do label any spoilers in the comments carefully.