[" 16.Shivani walks for "x" hours at a speed of "4km/h" ."],[" and for "y" hours at a speed of "6km/h" .If she "],[" walks "23km" in "5" hours,find "x" and "y" ."]

A man walks at a speed of 6 km/hr for 1 km and 8 km/h for the next 1km. What is his average speed of the walk of 2 km?

Sabrina walks home at the speed 8 km/hr and cycles at the speed 13 km/hr. If the total distance she covers is 84 km in 8 hours then find how much distance she walks and cycles?

The distance (in km) travelled in h hours at a constant speed of 40 km per hour is

A man walks at a speed of 6 km h^-1 for 1 km and 8 km h^-1 for the next 1 km.What is the average speed for the walk fo 2 km?

Find the ratio of speed of a cycle 15 km per hour to the speed of scooter 30km per hour-