At what angle the hour hand and minute hand of a clock are inclined at 15 min past 5 ? |
$120°$ $67\frac{1°}{2}$ $95°$ $135°$ |
$67\frac{1°}{2}$ |
Angle = 0 = [ \(\frac{60 x hour - 11 x mins.}{2}\) ] and, another angle = {360 - 0}° so, 0 = [ \(\frac{60 x 5 - 11 x 15}{2}\) ] => \(\frac{300-165}{2}\)° => ( \(\frac{135}{2}\) )° => 67.5 another angle = {360 - 0}° = (360 - 67.5) ° => 292.5 Thus, 67 1/2 is correct. |