Question

    Car 'C' traveling at a certain speed covered a certain

    distance in 8 hours. Car 'D,' which is 20% faster than Car 'C,' traveled for 5 hours and covered 160 km more than Car 'C.' Find the speed of Car 'C.'
    A 75 km/h Correct Answer Incorrect Answer
    B 80 km/h Correct Answer Incorrect Answer
    C 45 km/h Correct Answer Incorrect Answer
    D 65 km/h Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let the speed of Car 'C' = '10x' km/h Distance covered by Car 'C' = 10x × 8 = '80x' km Speed of Car 'D' = 10x × 1.2 = '12x' km/h Distance covered by Car 'D' in 5 hours = 12x × 5 = '60x' km According to the question, 60x - 80x = 160 Or, 20x = 160 Or, x = 160 ÷ 20 = 8 Therefore, the speed of Car 'C' = 10x = 10 × 8 = 80 km/h

    Practice Next