Question

Mr kapoor withdrew 25000 from an atm if he received 150 notes in denomination of 500 and 100 find the number of notes for each denomination

Answer 1

We need to formulate the equation of this problem.

Let x = the number of notes for denomination of 500

y = the number of notes for denomination of 100

We need to formulate the system of equation,

X + y = 150

500x + 100y = 25,000

Solution:

X = 150 – y

Substitute the value of x to the other equation:

500 (150 – y) + 100y = 25,000

75,000 – 500y + 100y = 25,000

-400y = 25,000 – 75,000

-400y = -50,000

y = 125

x = 150 – 125 (substitute the value of y)

x = 25

Therefore, there are 25 notes for denomination of 500 and 125 notes for denomination of 100.