in a class of 50 students, the average marks of 20 girls is 38 and the average marks of 30 boys is 33. find the average marks of all the students of the class.
saiyam4:
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The average mark of the students of the class is 35.5.
I say I need solution
add the values and divide it by 2
its wrong
sorry
can you give me solution
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total marks obtained by 20 girls = 760
total marks obtained by 30 boys = 990
average marks of all students= (760+990)/50 = 35
total marks obtained by 30 boys = 990
average marks of all students= (760+990)/50 = 35
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