Question

a purse contains rupees 550 in notes of denomination of rupee 10 and rupees 50 if the number of rupees 50 note is 1 less than that of rupee 10 notes then find the number of rupees 50 notes

Answer 1

let,no.of Rs10 note be X so,no. of Rs50 note=X-1 value of 10RS note=X*10=10X value of Rs50 note=50(X-1)=50X-50 so, 10X+50X-50=550 60X-50=550 60X=550+50 60X=600 x=600/60=10 no of Rs10 note=10 so no of Rs50 note=10-1=9