Question

Rekha has a total of Rs. 590 as currency notes in the denominations of
currency notes in the denominations of Rs. 50, Rs. 20 and
10. The ratio of the number of Rs. 50 and Rs. 20 note
duo or the number of Rs. 50 and Rs. 20 notes is 3.5. If she has a total of notes,
many notes of each denomination does she have?​

Answer 1

1. Question⇒  Rekha has a total of Rs. 590 as currency notes in the denominations of  currency notes in the denominations of Rs. 50, Rs. 20 and 10. The ratio of the number of Rs. 50 and Rs. 20 note  duo or the number of Rs. 50 and Rs. 20 notes is 3.5. If she has a total of notes, many notes of each denomination does she have?​

Step-by-step explanation:

• Let
• No. of currency notes of Rs 50 = 3x
• No. of currency notes of Rs 20 = 5x
• No. of currency notes of Rs 10 = 25 - (3x+5x) = 25 - 8x
• Amount made by Rs 50 notes = 50 × 3x = 150x
• Amount made by Rs 20 notes = 20 × 5x = 100x
• Amount made by Rs 10 notes = 10 × (25 - 8x) = 250 - 80x
• Total money = 590
• ⇒ 150x + 100x + 250 - 80x = 590
• ⇒ 170x = 340
• ⇒ x = 2
• Denominations:
• Rs 50 = 3 × 2 = 6
• Rs 20 = 5 × 2 = 10
• Rs 10 = (25 - 8 × 2) = 9