An amount of $ 7800 is made up with the notes of denominations $ 100, 50, 20, and 10 notes. The number of $10 notes are 5 times the number of $20 notes. The number of $20 notes are 5 times the number of $50 notes. The number of $50 notes are 3 times the number of $100 notes. What are total of____notes of denomination $10.
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Step-by-step explanation:
amt= $7800
let no of $100 notes = x
therefore no of $50 notes =3 * x=3x
no of $20 notes = 3x * 5= 15x
no of $10 notes= 15x * 5= 75x
therefore amt of $10 notes = 750x
amt of 20$ notes= 300x
amt of $50 notes = 150x
amt of 1$100 notes = 100x
750x+300x+150x+100x= 7800
1300x= 7800
x=7800/1300= 6
total amt of $10 notes = 6*750= 4500
total no of $10 notes = 6*75= 450
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