A class. Consist. Of. 60. Students. Out. Of. Which. 25. Girls . The. Man of. Marks score by. Girls. Is 77( out. Of. 100). And. Boys. Is. 68 find. Mean. Score of. Whole. Class
Answers
Answered by
1
=( 77 + 68 )/60
= 145/60
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Answered by
7
Answer:
71.75
Step-by-step explanation:
No. of students = 60
Girls= 25,
Boys=35(By solving)
Marks by girls=77×25=1925
Marks by Boys=68×35=2380
Total mean by boys and girls=1925+2380/60
=4305/60
=71.75
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