RRB NTPC Prelims Model Paper 2 with solutions

(2) Original number form is: 5 3 1 46 8 7
Ascending order form is: 1 3 4 5 67 8
Check the number(s) whose position will remain same after comparing both the forms:

Now, you will see that the position of two numbers remain unchanged,i.e. number 3 and 6. Hence, the answer would be two.