1.

From the given table, the number of students who got more than or equal to 50 marks, is __. Marks (class-interval) No. of students 30-40 12 40-50 13 50-60 4 60-70 15 70-80 6

A.  15                              
B.         21      
C.         25                              
D.         29      
Answer» D.         29      


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