Sum of 49 odd numbers is?
Choose the correct choice from the following answers.
A) 2398
B) 2399
C) 2400
D) 2401
E) 2402

Rationale: sum of 1 st n odd no . s = 1 + 3 + 5 + 7 + . . . = n ^ 2 so , sum of 1 st 49 odd numbers = 49 ^ 2 = 2401 answer : d
Answer: D