What is the sum of this series?
1, 3, 5, 7, 9, ...... 45. Pick one:
A) 600
B) 529
C) 612
D) 512
E) 589
Number of odd numbers between 1 and 45 is  (45+1)/2= 
<gadget id="calculator"> (45+1)/2</gadget>
<output>23</output>
23   Therefore Sum of odd numbers   23*23= 
<gadget id="calculator">  23*23</gadget>
<output>529</output>
529   ANSWER: 529
<result>B</result>
What is the sum of this series?
1, 3, 5, 7, 9, ...... 45.