find the 2 consecutive no. whose sum is 21 square
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answer=220and221
220+221=441=21square
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1
An easy question
21^2 = 441
Let x be the no. And x +1 be the next no.
X + (x+ 1) = 441
2x+1 = 441
2x = 440
X = 220
X+1 = 221
21^2 = 441
Let x be the no. And x +1 be the next no.
X + (x+ 1) = 441
2x+1 = 441
2x = 440
X = 220
X+1 = 221
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