Two men do the same journey by travelling at the speed of 18 km/h and 24 km/h, respectively. If one man takes 20 minutes more than the other man, then the distance (in km) of the total journey is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e 24.
If one man takes 20 minutes more than the other man = T1 - T2
T1 - T2 = 20 minutes
We know that,
Required distance = ((S1 × S2)/(S2 - S1) × (T1 - T2))
⇒ (18 × 24)/(24 - 18) × 20/60
⇒ (24 × 3) × 1/3 = 24
So, the distance of total journey = 24 km