📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    ⚡ Month End Offer - Flat 52% Off On All Courses! Enroll Now ⚡
    00:00:00 AM Left

    Question

    Aman goes from his home to his office at a speed of 30

    m/s and returns at 50% more speed. If the distance between his home and office is 1,800 metres, then find the average speed of the entire journey. 
    A 32 m/s Correct Answer Incorrect Answer
    B 30 m/s Correct Answer Incorrect Answer
    C 36 m/s Correct Answer Incorrect Answer
    D 26 m/s Correct Answer Incorrect Answer

    Solution

    The speed by which the man returns to his home from his office = 1.5 x 30 = 45 m/s Time taken by the man to reach his office = (1800/30) = 60 seconds Time taken by the man to return to his home from office = (1800/45) = 40 seconds Average speed = [(Total distance) /(Total time) ] = [(2 x 1800) /(60 + 40) ] = (3600/100) = 36 m/s

    Practice Next
    More Time and distance Questions

    Relevant for Exams:

    ask-question