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A sum of rs 800 is in the form of denomi...

A sum of rs 800 is in the form of denomination of rs 10 and rs 20.If the total number of notes are 50, find the number of notes of each type.

Text Solution

Verified by Experts

let Rs 10=x
Let Rs21=y
x+y=50-(1)
10x+120y=800
x+2y=80-(2)
subtracting equation 1 from equation 2
y=30
x=20
...
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