The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class

Question

The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total class strength​

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Everleigh 2 months 2021-11-10T19:08:30+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-10T19:09:41+00:00

    Answer:

    56

    Step-by-step explanation:

    1) Let the number of boys be 7x and girls be 5x.

    2) Therefore 7x = 5x + 8, 2x = 8, x = 4.

    3) No. of boys = 7x + 8 = 7 × 4 + 8 = 36.

    4) No. of girls = 5x = 5 × 4 = 20.

    5) Therefore, Total Strength = 36 + 20 = 56.

    0
    2021-11-10T19:10:22+00:00

    Answer:

    girls = 6

    Step-by-step explanation:

    boys and girls ratio = 7:5

    boys = 8

    girls = 8/? = 7:5 means 7/5

    (cross multiple)

    8×5 = 7×y. (y – is a supposing number of girls)

    40 = 7y

    7y = 40

    y = 40/7

    y(girls) = 5.71

    girls no. = 6 (u think that there is ans is 5.71 but in below u write 6 ,is that because when a number after is more than 50 is converted into next digit , similar in this we wrote 6 )

    sorry that’s my fault I thought no. of boys is 8 .

    sorry again

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