Question

Is the given Progression arithmetic progression?
$2,6,7,10,12,15,.........$

Answer 1

Given sequence

$2,6,7,10,12,15$…

Difference between consecutive number in a sequence must be same to be an AP

Here $6-2=4$

$7-6=1$

$10-7=3$

$4\ne 1\ne 3$

$\therefore$ It is not an AP.