How many times are the hands of a clock at right angle in a day?

22 44 24 48

44

Two hands of clocks are at right angle after every = \(\frac{360}{11}\) minutes Total number of minutes in a day = 24 × 60 = 1440 minutes Two hands at right angle in a day = \(\frac{360}{11}\) × 1440 = 44 times