400 students of class IX of a school appeared for a test of 100 marks in the subject of mathematics and the data about the marks secured is presented in the table. Marks secured 0-25 26-50 51-75 Above 75 Number of student 50 220 100 30 If the result card of a student is picked up at random, what is the probability that the student has secured more than 50 marks?

400 students of class IX of a school appeared for a test of 100 marks

1.	400 students of class IX of a school appeared for a test of 100 marks in the subject of mathematics and the data about the marks secured is presented in the table. Marks secured 0-25 26-50 51-75 Above 75 Number of student 50 220 100 30 If the result card of a student is picked up at random, what is the probability that the student has secured more than 50 marks?
A.	0.523
B.	0.532
C.	0.325
D.	0.352
Answer» D. 0.352

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