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Hi there! Have questions about your homework? At Brainly, there are 60 million students who want to help each other learn. Questions are usually answered in less than 10 minutes. Try it for yourself by posting a question! :D

Number of notes=90 Let the number of Rs.50 notes be x Then , number of Rs.10 notes=(90-x) Value of all the Rs.50 notes=Rs.50*x=Rs.50x Value of all the Rs.10 notes=Rs.10*(90-x)=Rs.(900-10x) Total amount=Rs.500 Given, 50x+900-10x=500 or,40x=500-900 or,40x=-400 or,x=-10 Since the number of notes is not a natural number , the question is impossible. (Important note:You can see that if all the notes are of Rs.10 then, total value of them=10*90=Rs.900 which is <500.SO THE QUESTION IS IMPOSSIBLE)