what is the answer of this question. and explain the answer with the solution
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Answer:65
Step-by-step explanation:
Number of boys = 70
Average marks of boys = 75
Total marks of boys =70 x 75 = 5250
Total marks of the class =72 x 100 = 7200
Total marks of girls = 1950
Average of the girls = 30/1950
=65
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Answer:
65 is right answer
total marks by students of class=72×100=7200marks
total marks by boys=75×70=5250marks
total marks by girls =7200-5250=1950
average=1950/30=65
Step-by-step explanation:
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