In the following number series, a wrong number is given. Find out the – InterviewSolution

InterviewSolution

1.

In the following number series, a wrong number is given. Find out the wrong number.6, 15, 35, 77, 155, 2211. 152. 353. 1554. 2215. 77

Answer» Correct Answer - Option 3 : 155

6, 15, 35, 77, 155, 221

In this pattern,

⇒ 2× 3 = 6

⇒ 3× 5 = 15

⇒ 5× 7 = 35

⇒ 7× 11 = 77

⇒ 11× 13 = 143

⇒ 13× 17 = 221

∴ The wrong number in the pattern is 155

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