IBPS RRB Officer Prelims 10 Sep 2017 Paper

If it is possible to make only one meaningful English word with the second, the third, the sixth and the ninth letters of the word REDUCTION using each letter only once, when counted from left to right, which of the following will be the fourth letter of the word so formed from the left end. If no such word can be formed,give X as your answer. If morethan one such word can beformed, give Z as your answer.