Question

N a city, 90% of the population own a car, 15% own a motorcycle, and everybody owns a car or a motor cycle or both. What is the percentage of motorcycle owners who own a car?

Answer 1

You want to know the ratio of the percentage who own both a car and a motorcycle to the percentage who own a motorcycle.

Now the calculation is :

% with both car and motorcycle = 5%

% motorcycle = 15%

now 5/15 = 1/3 = 33 1/3 %

Hence C is the answer.

What i want to ask is........Here we are supposed to find the percentage of motorcycle owners who own cars i.e. %age of people with both car & motorcycle.

No ratios are asked. But it is calculated in the answer.