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Question -

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 ₹ 50 and ₹ 100 she received.



Answer -

Total amount with drawn = ₹ 2000
Let number of ₹ 50 notes = x
and of ₹ 100 = y
According to the conditions
x + y = 25 …(i)
and 50x + 100y = 2000
=> x + 2y = 40 ….(ii)
(Dividing by 50)
Subtracting (i) from (ii), y = 15
Substituting the value of y in (i)
x + y = 25
x + 15 = 25
=> x = 25 – 15 = 10
Number of 50 rupees notes = 10
and number of 100 rupee notes = 15

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