Question

the sum of first 30 odd number series

Answer 1

hey dear


here is your answer


Solution


1, 3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37, 39,41,43,45,47,49,51,53,55,57,59


So

1 + 3+ 5 +7 +9 = 25

11 + 13 + 15 +17 +19 = 75

21+23+25+27+29 = 125

31+33+35+37+39 = 175

41+43+45+47+49 = 225

51+53+55+57+59 = 275


so we do sum of these odd numbers

75 + 125 +175+ 225+ 275

= 900


so the sum of first 30 series odd number is 900


hope it helps

thank you

Answer 2

$1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + 29 + 31 + 33 + 35 + 37 + 39 + 41 + 43 + 45 + 47 + 49 + 51 + 53 + 55+ 57 + 59 =$