At what time between 4 and 5 will the hands of a clock be a right angles ?A3838 38\frac{3}{11}minutespast4 minutes past 4minutespast4B3838 38\frac{9}{13}minutespast4 minutes past 4minutespast4C3838 38\frac{2}{11}minutespast4 minutes past 4minutespast4D3838 38\frac{5}{13}minutespast4 minutes past 4minutespast4Answer: 3838 38\frac{2}{11}minutespast4 minutes past 4minutespast4