If the sum of three consecutive odd numbers is 309, then the largest number among them is ___________.

Correct option is A

Given:

Sum of three consecutive numbers = 309

Solution:

Let the consecutive numbers be x, x+2 and x+4

Then x +(x+2)+(x+4) = 309

3x+6 = 309

3x = 303

x = 101

The largest number is = (x + 4) = 101+ 4 = 105