Sum of 24 odd numbers is?  Options
A) 572
B) 573
C) 574
D) 575
E) 576

Rationale: "sum of 1 st n odd no . s = 1 + 3 + 5 + 7 + . . . = n ^ 2 so , sum of 1 st 24 odd numbers = 24 ^ 2 = 576 answer : e"
Answer: E