The speed of a car is 70 km/hr for first 7 hours and 60 km/hr for the next 5 hours. What is the total distance (in km) covered by the car?
Show answer & explanation
Correct answer: C
Explanation
Given:
Speed for the first 7 hours = 70 km/h
Speed for the next 5 hours = 60 km/h
Distance covered in the first part = 70 × 7 = 490 km
Distance covered in the second part = 60 × 5 = 300 km
Total distance = 490 + 300 = 790 km