Question

shreya has total of Rs 590 as currency notes in the denominations of Rs 50,Rs 20 and Rs 10.The ratio of the number of Rs 50 notes and Rs 20 notes is 3:5. if she has a total of 25 notes how many notes of each denomination has she?

Answer 1

since total notes=25,

let ₹50 notes=3A,

₹20 notes=5A,

then

₹10 notes=25-3A-5A=25-8A,

now according to the question, We get

50×3A+20×5A+10×(25-8A)=₹590,

150A+100A+250-80A=₹590,

170A=₹590-₹250,

170A=340,

then

A=340/170,

A=2,


therefore

₹50 notes=3×2=6,

₹20 notes=5×2=10,

₹10 notes=25-6-10=9