Meena went to a bank to withdraw Rs 2000. She asked the cashier to give her Rs 50 and Rs 100 notes only. Meena got 25 notes in all. Find how many notes Rs 50 and Rs 100 she received.
Answers
Answered by
1
Let the Rs.50 notes by x and Rs.100 notes be y.
∴ Total notes =(x+y) notes
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.
Answered by
74
Let the Rs.50 notes by x and Rs.100 notes be y.
∴ Total notes = ( x + y ) notes
Total notes (given) = 25 notes
∴( x + y ) = 25 ⟶ (i)
Total money Meena has = 50 + 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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