Is it necessary to write the PTO in every page of the answer sheet of?
Not at all. Examiner hardly notice that. Dont bother writing PTO on every page. However, we do take care when a child leaves space to attempt a question ,falls short of space and write- Rest of the answer at the end or blah blah. So, this can be handy at times but try to do your paper in proper order. All thr best.