A person withdraws 9200 from a bank in notes of denomination rs.20,5o, 100. If the ratio between 100& 50is 2:1 & tot

Question

A person withdraws 9200 from a bank
in notes of denomination rs.20,5o,
100. If the ratio between 100& 50is
2:1 & total notes 180 Find the
no. of notes of each type.

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Jade 1 month 2021-08-17T05:58:56+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-08-17T06:00:24+00:00

    Answer:

    no.of 50notes is 30

    no.of 100notes is 59

    no.of 20notes is 90

    Step-by-step explanation:

    let total no.of 20 notes is ‘x’

    from the given data

    total no.of 100 notes is 2y

    total no.of 50 notes is y

    2y+y=3y=180-x

    x+3y=180——>equation1

    from the given data

    100(2y)+50(y)+20(x)=9200

    200y+50y+20x=9200

    20x+250y=9200

    2x+25y=920——->equation2

    equation1× 2 = 2x+6y=360——->equation3

    equation2- equation3

    2x+25y=920

    2x+6y=360

    ——————————–

    19y=560

    y=29.4

    then 2y= 58.8

    substitute y value in equation1

    x+3(30)=180

    x+90=180

    x=90

    no.of 50notes is 30

    no.of 100notes is 59

    no.of 20notes is 90

    I took approximate values.

    hope it helps..

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