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Laxmi has a total ₹590 as currency notes in denomination ₹50 , ₹20, and ₹10 . The ratio of the number of ₹50 notes, ₹20 notes is 3:5 . If she has a total of 25 notes. Many notes of each denomination she has? |
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Answer» 90RsStep-by-step EXPLANATION:Given Laxmi has 590 RupeesRS50,20&10 are there ⇒ Total 25 notesRs50&Rs20 ⇒3:5Notes of Rs50=3xNotes of Rs20=5xNotes of Rs10=25−(3x+5x)=25−8x.Amount in 50 Rupee notes ⇒50×3x=150xAmount in 20 Rupee notes ⇒20×5x=100x.Amount in 10 Rupee notes ⇒10(25−8x)=250−80xTotal Amount =590 ⇒150x+100x+250−80x=590⇒250−80x=590−250⇒170x=340∴x=2So Laxmi hasNotes 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 |
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