Question

Anil went to supermarket with a total of ₹ 590. He carried the notes of denominations of ₹50, ₹20 and ₹10. It is noted that the ratio of number of ₹50 notes to ₹20 notes is 3:5. Totally he has 25 notes with him. With this observation, answer the following questions: 5M (i) What is the total currency he carried with him? (ii) How many ₹50 notes he has? (iii) How many ₹20 notes he has? (iv) How many ₹10 notes he has? (v) How many notes he has in total?​

Answer 1

Given Devshi has 590 Rupees

RS50,20&10 are there ⇒ Total 25 notes

Rs50&Rs20 ⇒3:5

Notes of Rs50=3x

Notes of Rs20=5x

Notes of Rs10=25−(3x+5x)=25−8x.

Amount in 50 Rupee notes ⇒50×3x=150x

Amount in 20 Rupee notes ⇒20×5x=100x.

Amount in 10 Rupee notes ⇒10(25−8x)=250−80x

Total Amount =590

⇒150x+100x+250−80x=590

⇒250−80x=590−250

⇒170x=340

∴x=2

So Deveshi has

Notes of Rs.50=3(2)=6i.e;150(2)=300Rs.

Notes of Rs.20=5(2)=10i.e;100(2)=200Rs.

Notes of Rs.10=25−8(2)=9i.e;=90Rs