the sum of 3 consecutive odd natural numbers , each divisible by 3 is 72 . what is the largest among them ?
Pick one:  A) 21  B) 24  C) 27  D) 36  E) 45

Rationale: let the 3 consecutive odd numbers each divisible by 3 be x , x + 3 , x + 6 given , x + x + 3 + x + 6 = 72 3 x = 63 x = 21 the numbers are 21 , 24 , 27 therefore the largest number is 27 answer c .
Answer: C