Question

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.0.175
B.16(3/7)%
C.0.185
D.0.1825

Answer 1

______✨ HEY MATE ✨______

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SOLUTION :-
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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 = (5.75X*100)/35 = 16(3/7)%.

So , Option (B) is the right answer ✔️

$<marquee>✌️I THINK IT HELPED YOU ✌️$

Answer 2

I think answer is B.