Question

Meena went to bank to withdraw₹2000 she asked the cashier to give her₹50 and ₹100 only Meena got 25 notes in all find how many notes of ₹50 and ₹100 she received​

Answer 1

Answer:  No. Of 100 ruppee notes are 15 and 50 ruppee notes are 10

Step-by-step explanation:

Let the number of 100 ruppee notes be x and 50 ruppee notes y

100x + 50y = 2000 _(1)

x+y=25 notes_(2)

divide eqn (1) by 50

2x + y = 40

x + y= 25

when we solve these two equations by elimination method

x = 15

y = 25-15 = 10

therefore the number of 100 ruppee notes are 15 and 50 ruppee notes are 10.

Answer 2

Step-by-step explanation:

Let,

No. of notes Rs.50 be x

No. of notes Rs.100 be y

By first condition,

x+y=25---(1)

by second condition,

50x+100y=2000

x+2y=40--(2)-- by dividing by 50

substract equation (1) from (2)

y=15

substituting y=15 in equation (1)

x+15=25

x=25-15

x=10