(iv) Meena went to a bank to withdraw. 2000. She asked the cashier to give her 50 and 100 notes only. Meena got 25 notes in all. Find how many notes of 50 and 100 she received.
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5 fifty rupees notes and 20 hundred rupees notes.. notice: writ 50 rupees notes first because they mentioned 50 rupees notes first
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Let the number of Rs 50 notes and Rs 100 notes be x and y respectively.
According to the question,
=> x + y = 25 ... (i)
=> 50x + 100y = 2000 ... (ii)
Multiplying equation (i) by 50, we get
=> 50x + 50y = 1250 ... (iii)
Subtracting equation (iii) from equation (ii), we get
=> 50y = 750
=> y = 750/50
=> y = 15
Putting this value in equation (i), we have,
=> x = 25 - 15
=> x = 10
Hence, Meena has 10 notes of Rs 50 and 15 notes of Rs 100.
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