Q4. In a school, 60% of the students are girls. 50% of the girls walk to school. 20% of the boys walk to school. Wha

Question

Q4.
In a school, 60% of the students are girls.
50% of the girls walk to school.
20% of the boys walk to school.
What percentage of the students walk to school?

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Anna 2 weeks 2021-11-21T11:12:47+00:00 2 Answers 0

Answers ( )

    0
    2021-11-21T11:14:29+00:00

    Answer:

    38%

    Step-by-step explanation:

    Let x=100%

    60% of girls =60x/100

    Rest are boys. It means 40 % are boys

    40% Of boys =40x/100

    Now according to question,

    50 %of girls=(50/100)*(60x/100)

    =3x/10

    Again,

    20% of boys=(20/100)*(40x/100)

    =2x/25

    Now percentage of students who walk to school = (3x/10) + (2x/25)

    =19x/50

    Putting x=100 %, we get

    19x/50

    =(19*100%)/50

    =19*2%

    38%

    0
    2021-11-21T11:14:44+00:00

    38% of students walk to school

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