Question

a car starts at A and reaches a destination in 8 hours. If it travels first and second half at the speed of 80 km/hr and 100 km/hr respectively then the distance between A and destination is:​

Answer 1

Answer:

Let the total time be 5 hours.

Speed of the person = 60km/h

Total distance = 5 × 60 = 300

He covers 60% of his journey in 2/5th of the time

Remaining journey = 300 × (40/100) = 120 km

Remaining time = 5 × (3/5) = 3 hr

Required speed = 120/3 = 40 km/h