Instructions

In the following number series only one number is wrong. Find out the wrong number.

Question 112

2, 4, 11, 37, 151, 771, 4633

Solution

The pattern followed is :

2 $$\times 1 + 2$$ = 4

4 $$\times 2 + 3$$ = 11

11 $$\times 3 + 4$$ = 37

37 $$\times 4 + 5$$ = 153 $$\neq 151$$

153 $$\times 5 + 6$$ = 771

771 $$\times 6 + 7$$ = 4633

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