1.

The percentage of students securing marks less than 50 is

A. $$ 28{4 over 7}%$$
B. $$ 25{5 over 7}%$$%
C. $$ 23{13 over 21}%$$%
D. $$ 47{13 over 21}%$$%
Answer» B. $$ 25{5 over 7}%$$%


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