A sum of .rupees 500 is in the form of dominations of ruppes 5and rupees 10 .if the total number of notes is 90,find the number of notes of each type
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Answered by
21
hy
friend
here is your solution··········
lets assume you have ∞
≡ x notes of rupees 5
≡y notes of rupees 10
x+y = 90
and 5x + 10y = 500
putting
x= 10 - y in second equation you have
first step
➡5 [90 - y] + 10y = 500
➡450 - 5y + 10y = 500
➡5y = 500 - 450
➡ y = 50 / 5 = 10
second step
x = 90-10
= 80
so answer is 80 notes of rupees 5 and 10 notes of 10
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Answered by
2
Hello...dear..
Your answer is...
answer is 80 notes of rupees 5 and 10 notes of 10
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