Question

Solve the following simultaneous equation.......
There are x notes for rupees 5 and y notes of rupees 10 amounting rupees 80. The sum of two kinds of notes is 12.​

Answer 1

Answer:

Step-by-step explanation:

Let x no of Rs 20 Notes and y no of Rs 5 notes from the question first statement

20 x + 5y = 380 .......................eq(1)

for interchnaged the notes

5 x + 20 y = 380-60 = 320.............eq(2)

after solving two linier equation you will get,

x = 16 and y =12

so there will be 16 notes of Rs 20 and 12 notes of Rs 5.

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