Question

10. Lakshmi is a cashier in bank. She has currency notes in denomination 2100 250
and 10 respectively. The ratio of number of these notes is 2:3:5. The total cash
with Lakshmi is 400000. How many notes of each denomination does she have?​

Answer 1

☞︎︎︎ Let the number of notes of different denomination be X

☞︎︎︎ Therefore, Numbers of Rs2100 notes , Rs250notes and Rs10 notes will be 2x, 3x and 5x respectively.

Amount of ₹2100 notes → Rs 2100 × 2x → 4200x

Amount of ₹250 notes → Rs250 × 3x → 750x

Amount of ₹10 notes → Rs10 ×5x → 50x

As per the question ,

Total Amount = 400000

=> 4200x + 750x + 50x = 400000

=> 5000x = 400000, X = 80

No. of Rs2100 notes = 2x = 2×80 = 190

No. of Rs250 notes = 3x = 3× 80 = 240

No. of Rs10 notes = 5x = 5× 80 = 400

Answer 2

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Lakshmi is a cashier in a bank. she has currency note of denominations Rs. 100 Rs. 50 and Rs. 10, respectively. The ratio of the number of these notes is 2:3:5. The total cash with Lakshmi is Rs 4,00,000. how many notes of each denominations does she have?

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Let the number of notes of different denomination be x.

∴ Numbers of Rs100 notes, 50 notes and Rs10 notes will be 2x,3x and 5x respectively.

Amount of 100 Rs notes ⇒Rs100×2x=200x

Amount of 50 Rs notes ⇒Rs50×3x=150x

Amount of 10 Rs notes ⇒Rs10×5x=50x

As per the question

Total amount =400000

200x+150x+50x=400000

400x=400000,x=1000

No of Rs 100 notes =2x=2×1000=2000

No of Rs 50 notes =3x=3×1000=3000

No of Rs 10 notes =5x=5×1000=5000

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Hope it helps you!.

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