2+6+10+.......+104=???
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2 + 6 + 10 + ... + 104 is not an Arithmetic progression or Geometric progression.
The last number is probably 102 or 106...
2+6+10+ ...+106 :
n = (106-2)/4 + 1 = 27 OR, 106 = 2 + (n-1) 4 => n = 27
Sum = (2+106)/2 * 27 = 54 * 27
The last number is probably 102 or 106...
2+6+10+ ...+106 :
n = (106-2)/4 + 1 = 27 OR, 106 = 2 + (n-1) 4 => n = 27
Sum = (2+106)/2 * 27 = 54 * 27
kvnmurty:
:-)
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