Question

    Vipin travels one-third of the distance of a journey at

    a speed of 30 km/h and the remaining distance at a speed of 40 km/h. If he took a total of 12 hours to complete the journey, what was the total distance (in km) of the journey?  
    A 445 Correct Answer Incorrect Answer
    B 450 Correct Answer Incorrect Answer
    C 412 Correct Answer Incorrect Answer
    D 432 Correct Answer Incorrect Answer

    Solution

    Given Speed = 30 km/h and 40km/h           ,max value  LCM  of  30, 40 =360 So  let the total distance = 360 1/3 of 360 =120 and remain distance =360-120=240 total time =4+6= 10 ATQ- 10=12 1=1.2 So now the total distance - 1.2×360=432km

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