RRB Group-D Model Paper 20 with answers for online practice

The angle between hour hand and the minute hand when the clock shows 4:30 am can be calculated by using the following formula:
Angle = $\frac{11}{2}$ ×M−30×H
Where, M = Minutes and H = Hours
Here M = 30 and H = 4
Therefore, we get angle = $\frac{11}{2}$ ×30−30×4 = 165 – 120 = 45 ˚.
Hence, 45˚ is the correct answer.