Question

Seema has a total of Rs.235 as currency notes in the
denominationsofRs.50,Rs.10 and Rs.5.The ratio of the number of
Rs.50 notes and Rs.10 notes is 3:5.If she has a total of 15 notes,
how many Rs. 5 notes does she have?

Answer 1

Answer:

no.of 5 rupee notes is = 7

Step-by-step explanation:

50x+10y+5z=235 —1

x,y,z are no.of notes

total no.of notes(x+y+z)=15

x/y=3/5

x=3,y=5

substitute x and y in equation 1

50(3)+10(5)+5.z=235

200+5z=235

5z=35

z=7