The angle between the hour hand and minute hand of a clock can be found using the formula:
Angle =∣11M/2−30H∣
where M = minutes and H = hours (in 12-hour format)
For (A) 2:20 p.m., H=2 and M=20:
Angle =211(20)−30(2)
=∣110−60∣
=50°
This matches with (III)
For (B) 3:10 p.m., H=3 and M=10:
Angle =211(10)−30(3)
=∣55−90∣
=35°
This matches with (I)
For (C) 5:30 p.m., H=5 and M=30:
Angle =211(30)−30(5)
=∣165−150∣
=15°
This matches with (IV)
For (D) 6:40 p.m., H=6 and M=40:
Angle =211(40)−30(6)
=∣220−180∣
=40°
This matches with (II)
The correct matching is:
(A) - (III), (B) - (I), (C) - (IV), (D) - (II)
Therefore, the correct answer is Option 3.