Question

Ranu has ₹500 note she has gone to change the note to the shopkeeper. The shopkeeper gave her 19notes of ₹50 and ₹20. How much notes she got?​

Answer 1

Answer: Four 50 rupees note and fifteen 20 rupees note

Step-by-step explanation: let 50 rupees note be =x

Let 20 rupees note be =y

X+Y=19........(1)

Y=19-×......(2)

50x+20y=500.....(3)

Substituting equation (2) in (3)

50x+20(19-x)=500

50x+380-20x=500

30x=500-380

30x= 120

X=120÷30

X=4

Substituting x value in equation (1)

4+y=19

Y=19-4

Y=15