Question

express 144 as a sum of 12 odd numbers (formula).

Answer 1

Hi ,

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we know that ,

sum of n odd natural numbers = n²

Or

1 + 3 + 5 + ......+ n ( odd ) = n²

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1+3+5+7+9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

= 12²

= 144

I hope this helps you.

: )

Answer 2

Heya !!!



As we know that,


Sum of n odd natural Numbers = N²



It means,


1 + 3 + 5 + 7 + 9 + 11.......N = N².





1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 = ( N)²


1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 = (12)² = 144.




HOPE IT WILL HELP YOU...... ;-)