SOLUTION: A sum of ₹ 500 is in the form of denominations of ₹ 5 and ₹ 10 . If the total number of notes is 90 , find the number of notes of each type .
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Question 1041773: A sum of ₹ 500 is in the form of denominations of ₹ 5 and ₹ 10 . If the total number of notes is 90 , find the number of notes of each type .
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
Let n equal the ₹ 10 notes. Then:
10n+5(90-n)=500
5n=50
n=10
There are 10 ₹ 10 notes, and 80 ₹ 5 notes. ☺☺☺☺
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