- A28
- B11
- C18
- D47
Step-by-Step Solution
3 + 4 = 7, 4 + 7 = 11, 7 + 11 = 18, 11 + 18 = 29 (not 28), and 18 + 29 = 47. So 28 is wrong.
Answer: A) 28
In 3, 4, 7, 11, 18, 28, 47 each term should be the sum of the two before it. Which term is wrong?
Competition practiceNumber Series
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Number Series practice questions
More Number Series practice
The series 5, 10, 20, 40, 79, 160 has one wrong term. Identify it.Which term breaks the pattern in 6, 13, 27, 55, 111, 225, 447?Which term continues the series 3, 7, 13, 21, 31, ?The series 0, 3, 8, 15, 24, ? follows a fixed rule. What replaces the question mark?Which term follows: 2, 12, 36, 80, 150, ?