Question

Find out the wrong term: $15,16,22,29,45,70.$

Answer 1

Analyze the pattern to find out the wrong term:

We are given the pattern as

$15,16,22,29,45,70.$

The right pattern is given by, $+1,+4,+9,+16,+25$.

That is $+1^2,+2^2,+3^2,+4^2,+5^2.$

The correct pattern is given as,

$$\begin{gathered} 15+1^2=16 \\ 16+2^2=20 \\ 20+3^2=29 \\ 29+4^2=45 \\ 45+5^2=70 \end{gathered}$$

Here, $22$ is the incorrect term and must be replaced by $(16+4)=20.$

Hence, the incorrect term for the pattern $15,16,22,29,45,70$ is $22$.