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In a class, the average marks of boys is...

In a class, the average marks of boys is 520 and that of the girls is 420. If the average marks per student is 500, the percentage of boys in the class is …….

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In a class, the average marks of boys is 520 and that of the girls is 420. If the average mark per student is 500, then the percentage of boys in the class is________.

The average marks of boys in a class is 52 and that of girls is 42. The average marks of boys and girls combined is 50. The percentage of boys in the class is

Knowledge Check

  • The average marks of boys in a class is 52 and that of girls is 42 the average marks of boys and girls combined is 50 the percentage of boys in the class is

    A
    0.4
    B
    0.2
    C
    0.8
    D
    0.6

  • In a Mathematics test, the average marks of boys is x% and the average marks of girls is y% with xney. If the average marks of all students is z% the ration of the number of girls to the total number of students is

    A
    `(z-x)/(y-x)`
    B
    `(z-y)/(y-x)`
    C
    `(z+y)/(y-x)`
    D
    `(z+x)/(y-x)`

  • In a class of 50 students, 60% are boys. The average of marks of the boys is 62, and that of the girls is 68. What is the average marks of the whole class ?

    A
    `64.8`
    B
    `64.4`
    C
    `65.2`
    D
    `64.6`

    • Similar Questions

    Explore conceptually related problems

    The average marks of boys in a class is 52 and that of girls is 42. The average marks of boys and girls combined is 50. The percentage of boys in the class is (1) 40 (2) 20 (3) 80 (4) 60

    The average marks of 50 students of a class is 76. If the average marks of all boys is 70 and that of all girls is 80 in that class, then find the number of boys in the class.

    In a class, there are 54 students. 33(1)/(3)% of the number of students are boys and rest are girls. The average score in mathematics of boys is 50% more than that of the girls. If the average score of all the students is 70, then what is the average score of the boys?

    The average of marks scored by the students of a class is 68. The average of marks of the girls In the class is 80 and that of boys is 60. What is the percentage of boys in the class ?

    If the average marks of the 1/4th class is 85% and that of 1/3rd class is 70% and the average marks of the rest class is 56% then the average of the whole class is (for the given subjects):

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