Meena went to a bank to withdraw 7 2000. She asked the cashier to give her
750 and ? 100 notes only. Meena got 25 notes in all. Find how many notes of
750 and 7 100 she received.
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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.
⟶ Let the Rs.50 notes by x and Rs.100 notes be y.
∴ Total notes =(x+y) note
Total notes (given) =25 notes
∴(x+y)=25⟶(i)
Total money Meena has=50x+100y
Total money (given) =Rs.2000
On simplification,
x+2y=40⟶(ii)
On substraction (i) and (ii),
−y=−15
y=15 notes
putting y in (i)
x+y=25
x=10 notes
∴ Rs.50 notes=10 notes.
Rs.100 notes=15 notes.
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