11. A sum of $500 is in the form of notes of denominations of 5 and 10. If the total number of notes is 90 then find the number of notes of each type. 4 000
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A sum of ₹ 500 is in the form of notes of denominations of ₹ 5 and₹ 10. If the total number of notes is 90, find the number of notes of each type. The number of ₹ 10 notes
= 90-x = 90-80 = 10 .
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