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The cost of a car is 400% greater than the cost of a bike. If there is an increase in the cost of the car is 15% and that of bike is 20%. Then the total increase in the cost of the 5 cars and 10 bikes is:

1)17.5%

2)16 3/7%

3)18.5 %

4)18.2%


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    16 3/7%

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  • Exam: Percentage QUESTIONS






    Bike------Car
    x-------5x
    1.2x-----5.75x
    Initially total cost =25x+10x=35x
    Changed cost=28.75x+12x=40.75x
    Percentage change=5.75/35×100=16 3/7%


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