Related Questions

In Dhaka City 90% of the population own a car, 15% own a motorcycle, and everybody owns one or the other of both. What is the percentage of motorcycle owners who own cars?
A 33%
B 66%
C 50%
D 90%
In a city 90% of the population 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?
A 5%
B 15%
C 3313%
D 50%
In New jersey 90% of the population 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?
A 647%
B 1523%
C 3313%
D 4512%
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?
A 33%
B 66%
C 50%
D 90%
The ratio of boys to girls in class A is 3 to 4 . The ratio of boys to girls in class B is 4 to 5 . If the two classes were combined, the ratio of boys to girls in class B is two less than the number of girls in class A. How many girls are in class A?
A 87
B 11
C 12
D 15
Three maths classes: X, Y, and Z take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and the average score of class Y and Z is 81. What is the average score of the combined classes X, Y, and Z?
A 81
B 81.5
C 82
D 84.5
Half the graduating class of a college was accepted by a business school. One-third of the class was accepted by a law school. It one-fifth of the class was accepted by both types of school, what fraction of the class was accepted only by a law school?
A 2/15
B 1/6
C 1/3
D 1/2
At the beginning of a class period, half of the students in a class go to the library. Later in the period, half of the remaining students go to the computer lab. If there are 5 students remaining in the class, how many students were originally in the class?
A 12
B 16
C 24
D 32
Following energized winding of a D.C. machine should not be opened as it would produce high inductive voltage which may be dangerous to personnel and may cause its own insulation failure.
A Series field
B Compensating field
C Inter pole field
D Shunt field
Fresh grapes contain 90% water by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 20 kg of fresh grapes?
A 2 kg
B 2.4 kg
C 2.5 kg
D None of these

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