a man is walking at a speed of 10 km per hour . after every kilometre , he takes rest for 10 minutes . how much time will be take to cover a distance of 10 kilometres ?
"rest time = number of rest ã — time for each rest = 9 ã — 10 = 90 minutes total time to cover 10 km = ( 10 â  „ 10 ã — 60 ) minutes + 90 minutes = 150 minutes answer b"
add(multiply(divide(10, 10), speed(const_60, const_1)), multiply(const_4, 10))