Between 6 pm and 7 pm, the minute hand of a clock will be ahead of the hour hand by 3 minutes at: |
6:20 pm 6:24 pm 6:36 pm 6:48 pm |
6:36 pm |
The correct answer is Option (3) → 6:36 pm Step 1: Positions of hour and minute hands
Hour hand moves = $0.5° \text{ per minute}$ → angle = $180 + 0.5t°$ We want minute hand ahead by 3 minutes:
Step 2: Set up equation $\text{Minute hand angle} - \text{Hour hand angle} = 18°$ $6t - (180 + 0.5t) = 18$ $6t - 180 - 0.5t = 18$ $5.5t = 198$ $t = \frac{198}{5.5} = 36\ \text{minutes}$ Step 3: Time $6:00 + 36\ \text{minutes} = 6:36\ \text{pm}$ |