a man walking at the rate of 6 km per hour crosses a square field diagonally in 9 seconds the area of the field is
explanation : distance covered in 9 seconds = ( 6 × 1000 / 3600 ) × 9 = 15 m diagonal of square field = 15 m side of square = a then diagonal of that square = √ 2 a hence area of the square = a 2 = ( 152 ) / 2 = 112.5 sq . m answer : option c
divide(power(multiply(divide(multiply(6, const_1000), multiply(const_360, const_10)), 9), const_2), const_2)