Q202
Find out the wrong term: 6, 15, 35, 77, 165, 221
A.
35
B.
77
C.
165
AnswerD.
221
Answer: Option C
Solution
Answer: Option C
Solution:
The terms of the series are product of two consecutive prime numbers i.e., (2 × 3), (3 × 5), (5 × 7), (7 × 11),...........So, 165 is wrong and must be replaced by (11 × 13) i.e., 143.