Question

a sum of 800 is in the form of denomination of rupees 20 and rupees 10 if the total number of north is 50 find the number of notes of each type​

Answer 1

Step-by-step explanation:

let the number of Rs 10note be x

then Rs 20= 50-x

according to question

10x+ 20*(50-x) = 800

10x + 1000 - 20x = 800

- 10x + 1000= 800

10x = 1000 - 800

= 200

x = 20

number of Rs 10 notes = 20

number of Rs 20 notes = 50-20

= 30