The average of the marks obtained in an examination by 8 students was 51 and by 9 other students was 68 . The average marks of the 17 students was : - Study24x7
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The average of the marks obtained in an examination by 8 students was 51 and by 9 other students was 68 . The average marks of the 17 students was :

A

59

B

59.5

C

60

D

60.5

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