Practicing Success
At what angle the hour hand and minute hand of a clock are inclined at 15 minutes past 5? |
$58 \frac{1°}{2}$ $64°$ $67 \frac{1°}{2}$ $72 \frac{1°}{2}$ |
$67 \frac{1°}{2}$ |
Time = 15mins past 5 Angle = 0 = (60 x hour - 11 x min.) /2 another angle = (360 - 0)° => 0 = (60 x 5 - 11 x 15) /2 => (300 - 165) /2° => (135/2)° => 67.5° and another angle => (360 - 67.5)° = 292.5° Thus, $67 \frac{1°}{2}$ is correct. |