In a certain school, 10% of the students have less than 75% attendance and are not allowed to sit in the exam, but 20% of the students who have less than 75% attendance are allowed to sit in the exam. What percent of the students in the school have less than 75% attendance ?

In a certain school, 10% of the students have less than 75% attendance

1.	In a certain school, 10% of the students have less than 75% attendance and are not allowed to sit in the exam, but 20% of the students who have less than 75% attendance are allowed to sit in the exam. What percent of the students in the school have less than 75% attendance ?
A.	30%
B.	12.5%
C.	15%
D.	10.5%
Answer» C. 15%

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In a certain school, 10% of the students have less than 75% attendance and are not allowed to sit in the exam, but 20% of the students who have less than 75% attendance are allowed to sit in the exam. What percent of the students in the school have less than 75% attendance ?

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