Question

a number sum of rupees 9000 is in the form of denomination of rupees 100 and rupees 500 if the total number of notes is 50 find the number of notes each type

Answer 1

Let the number of 500 rupees notes be x.
And 100 be (50-x) .
$500x + 100(50 - x) = 9000 \\ 500x + 5000 - 100x = 9000 \\ 500x - 100x = 9000 - 5000 \\ 400x = 4000 \\ x = \frac{4000}{400 } \\ x = 10$
Therefore,
Notes of 500 = x = 10
Notes of 100 = (50 - x) = 50-10 = 40

MARK AS BRAINLIEST