the diameter of the driving wheel of a bus in 140 cm . how many revolutions per minute must the wheel make in order to keep a speed of 11 kmph ?
"distance covered in 1 min = ( 66 * 1000 ) / 60 = 183.33 cm circumference of the wheel = ( 2 * ( 22 / 7 ) * . 70 ) = 4.4 m no of revolution per min = 183.33 / 4.4 = 41.67 answer : d"
divide(divide(multiply(11, const_1000), const_60), multiply(multiply(divide(add(11, const_2), add(const_4, const_3)), const_2), divide(divide(140, const_100), const_2)))