Related Questions

The persent ratio of students to teachers at a certain school is 30 to 1. If the student enrollment were to increase by 50 students and the number of teachers were to increase by 5, the ratio of students to teachers would then be 25 to 1. What is the present number of teacher?
A 15
B 10
C 12
D 8
If w is 10% less than x, and y is 30% less than Z, then why is what percent less than xz?
A 10%
B 20%
C 37%
D 40%
If w is 10 percent less than x, and y is 30 percent less than z, then wy is what percent less than xz?
A 10%
B 20%
C 37%
D 40%
If w is 10% less than x and y is 30% less than z , then wy is what percent less than xz ?
A 10%
B 20%
C 37%
D 40%
If w is 10 percent less than x, and y is 30 percent less than z , then why is what percent less than xz?
A 10%
B 20%
C 37%
D 40%
If w is 10% less than x and y is 30% less than z, then wy is what percent less than xz?
A 10%
B 20%
C 37%
D 40%
At a certain bookstore , the regular price of each book is 20 percent less than its list price. If during a sale the price of each book at the store was 15 percent less than its regular price, then the price of a book during the sale was what percent less than its list price ?
A 30%
B 32%
C 35%
D 38%
In a group of students, 80% of the students weigh less than 60 kg and a total of 32 student weigh less than 50 kg. If 60% of the students weigh at least 50 kg, how many of the students weigh at least 50 kg but less than 60 kg?
A 32
B 36
C 40
D None of these
The salary of X is 30% less than that of z and the salary of Y is 37% less than that of Z. what percent is the salary of Y less than that of salary x?
A 7%
B 9%
C 10%
D None
If w is 10% less than x, and y is 30% less than z, they wy is what percent less than xz?
A 10%
B 20%
C 37%
D 40%

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