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8th Class Mathematics Comparing Quantities Question Bank Commercial Mathematics

  • question_answer
    The speed of train is 120 km/hr. It is increased by 20%. The new speed of the train is

    A) 140 km/hr     

    B)          125 km/hr

    C) 145 km/hr     

    D)          144 km/hr

    Correct Answer: D

    Solution :

    Increase in the speed of the train ? 20% of 120 \[=\frac{20}{100}\times 120\,=24\,km/hr\]  \[\therefore \]   New speed = (120 + 24) = 144 km/hr


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