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 20%. Then the total increase in the cost of the 5 cars and 10 bikes is:
A. 17.5%
B. $$16\frac{3}{7}$$ %
C. 18.5%
D. 18.25%
Answer: Option B
Solution(By Examveda Team)
Let the bike's initial cost be x and then car's initial cost be 5x After the increase, Bike price = 1.2x Car price = 5.75x Initial total cost of 5 cars and 10 bikes, = 25x + 10x = 35x New cost, = 28.75x + 12x = 40.75x Change in cost = (40.75x - 35x) = 5.75x % change = $$\frac{{5.75{\text{x}} \times 100}}{{35}} = 16\frac{3}{7}\% $$This Question Belongs to Arithmetic Ability >> Percentage
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Comments ( 3 )
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Can't understand
In que there is increase in 400 percent .so initially it was 100 per and increase in 400 in the sense 400+100 so it comes 500
I can't understand how the initial cost of bike is X and initial cost of bike is 5X.