Question

13. A sum of 800 is in the form of denominations of 10 and 20. If the total number oi
notes is 50, find the number of notes of each type.​

Answer 1

Answer:

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

20 notes of 10 Rs

30 notes of 20 Rs.

Step-by-step explanation:

Answer 2

Answer:

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