A lady went to a bank with rs. 100000. She asked the caahier to give her rs. 500 and rs.1000 currency notes in return . She got 175 currency notes in all. Find the number of each kind of currency notes.
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Answer:
25 numbers of ₹1000 notes and 150 numbers of ₹500 notes
Step-by-step explanation:
x*1000 + (175-x)*500 = 100000
x*10 + (175-x)*5 = 1000
10x + 875 - 5x = 1000
5x = 125
x = 125/5 = 25
175-x = 150
ie, 25 numbers of ₹1000 notes and 150 numbers of ₹500 notes.
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