In Dhaka city 90% of the populating own a car, 15% own a motorcycle, and everybody owns one or the other or both. What is the percentage of motorcycle owners who own cars?
Created: 6 years ago |
Updated: 1 month ago
best des
Total = total cars + total motorcycles - both + neither
We can let the total = 100 and b = both and create the equation, noting that since everyone owns at least one vehicle, the value of neither is 0:
100 = 90 + 15 - b + 0
100 = 105 - b
b = 5
Thus, 5/15 = 1/3 = 33⅓% of the motorcycle owners also own a car.
Answer: None of These.
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