Question

Find the wrong term of the series :

$3,6,11,18,28,38,51,66$

• A. $18$
• B. $28$
• C. $38$
• D. $51$

Answer 1

The correct option is B $28$

Given series is: 3, 6, 11, 18, 28, 38, 51, 66.
Here, the difference between two consecutive terms is an odd number starting as: +3, +5, +7, +9, +11, +13, +15.
Clearly, 18 + 9 = 27.
Therefore, 28 is the wrong term.
Hence, option (B) is the correct answer.