## 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.

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

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..