Question

    A truck was moving for 6 hours at a speed of 55 km/h and

    later continued for 4 hours at a speed of 70 km/h. What is the average speed for the full trip?
    A 61 km/h Correct Answer Incorrect Answer
    B 50 km/h Correct Answer Incorrect Answer
    C 44 km/h Correct Answer Incorrect Answer
    D 55 km/h Correct Answer Incorrect Answer

    Solution

    ATQ,

    Total distance travelled by the truck = 55 × 6 + 70 × 4 = 330 + 280 = 610 km

    Total time taken = 6 + 4 = 10 hours

    So, average speed = total distance travelled ÷ total time taken = 610 ÷ 10 = 61 km/h

    Practice Next

    Relevant for Exams: