Distance of A to B is

The correct answer is Option (3) → 2 units

On a number line, the distance between two points is the larger value minus the smaller. The small marks divide each of the parts 2–3 and 4–5 into ten equal steps of 0.1, so each point is read from its mark.

• A is on the 7th mark after 2, so A \(=2.7\)

• B is on the 7th mark after 4, so B \(=4.7\)

• Distance AB \(=4.7-2.7=2\) units