of 3 numbers , the third is twice the first and the second is 4 times the first . if their average is 77 , the smallest of the 3 numbers is : Choose the most appropriate option:
A) 18  B) 25  C) 20  D) 32  E) 33

Rationale: explanation : let first number be x . so , 2 nd no . = 4 x & 3 rd no . = 2 x . so , x + 4 x + 2 x = 77 × 3 = 231 7 x = 231 x = 231 / 7 hence , smallest number x = 33 answer : e
Answer: E