200 and 180 students of school A & B passed the exam. 20% and 10% students from A and B did not pass the exam. How many students appeared in the exam from both the schools?

200 and 180 students of school A & B passed the exam. 20% and 10% stud

1.	200 and 180 students of school A & B passed the exam. 20% and 10% students from A and B did not pass the exam. How many students appeared in the exam from both the schools?
A.	420
B.	360
C.	450
D.	400
E.	480
Answer» D. 400

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200 and 180 students of school A & B passed the exam. 20% and 10% students from A and B did not pass the exam. How many students appeared in the exam from both the schools?

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