(5) non [udc 1992, mb. 37.anil walks some distance at 40 km/hr for to the distance 2 hours, which is half of the distance to reach the point a. calculate the sp

(5) NOn [UDC 1992, MB. 37.Anil walks some distance at 40 km/hr for to the distance 2 hours, which is half of the distance to reach the point A. Calculate the speed he should walk so that he reaches point A in the next 4 hoursS. (1) 10 km/hr (2) 20 km/hr