Correct Answer - Option 2 : 520 km
Given:
A man travelled 3/5th of the total distance by car
A men travelled 7/20th of the total distance by bike
Concept:
Speed = Distance/Time
Calculation:
Let us assume total distance is X
⇒ 3X/5 + 7X/20 + 26 = X
⇒ 12X + 7X + 520 = 20X
⇒ X = 520 km
∴ The required result will be 520 km.