A person goes from A to B with speed 40 km/hr & return from B to A with speed 30 km/hr. Whole journey takes 14 hr, then find the distance between A & B in Km.
A480
B240
C80
D120
Answer:
B. 240
Read Explanation:
Let the distance be ‘D’ km
D/40 + D/30 = 14
(3D + 4D)/120 = 14
7D/120 = 14
D = 240 km