Ashok completes a journey in 7 hours. He travels the first half of the journey at the speed of 24 km/h and the second half of it at the speed of 32 km/h. The total distance of the journey is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 192 km.
Let, Total distance = 2D
⇒ D/24 + D/32 = 7
⇒ (4D + 3D)/96 = 7
⇒ 7D/96 = 7
⇒ D = 96 km
Total distance = 2D = 2 × 96 = 192 km