Question

4. A sum of Rs 600 is in the form of Rs 20 and Rs 50 notes. If the number
of Rs 50 notes is double of Rs 20 notes, find the number of notes of each
type.

Answer 1

Similar Question :- A sum Rs.500 is in the form of denominations of Rs.5 and Rs.10. If the total number of notes is 90 find the number of notes of each denomination.

(Hint: let the number of 5 rupee notes be 'x', then number of 10 rupee notes =90−x)

Solution :- Let the number of 5 rupee notes be x,then

The number of 10 rupee notes =90−x

Then ,according to the question

5x+10(90−x)=500

5x+900−10x=500

5x=400

x=80

There are 80 notes of Rs.5 and 10 notes of Rs.10.

Hope it will helps you ☺️