Anjana walked at 4 kmph for a certain part of his journey and took an auto, travelling at 25 kmph for the rest of the journey. If he took 42 minutes for the entire journey, what part of the journey did he walk given that his average speed for the entire journey was
10 kmph?
a) 2 km
b) 1.5 km
c) 3.5 km
d) 4 km
e) 1 km
10 kmph?
a) 2 km
b) 1.5 km
c) 3.5 km
d) 4 km
e) 1 km