Find the error intervals for the following rounded numbers

Question 1:

5.2 (1 d.p.)

5.15≤x<5.25

Question 2:

540 (2 s.f.)

535≤x<545

Question 3:

1.7 (1 d.p.)

1.65≤x<1.75

Question 4:

8170 (3 s.f.)

8165≤x<8175