Question

A lady has 25 P and 50 P coins in her purse.If in all she has 40 coins totalling ₹12.50 , find the number of coins of each type she has.

Please give correct answer.

Answer 1

Let the no. of 25p coins be x and that of 50p be y
x+y=40 ....(i) =>x=40-y
25x+50y=1250
(25x+50y=1250)/25
x+2y=50 ....(ii)
Putting value of x,
40-y+2y=50
y=50-40=10
.•. x=40-10=30

Answer:
x=30
y=10


Hope it helped you...

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Answer 2

Hi ,

Let number of 25p coins = x ,

number of 50p coins = ( 40 - x ) ,

according to the problem given ,

25x + 50( 40 - x ) = 1250

divide each term with 25 , we get


x + 2( 40 - x ) = 50

x + 80 - 2x = 50

- x = 50 - 80

-x = -30

x = 30

Therefore ,

number of 25p coins = x = 30

number of 50p coins = 40 - x

= 40 - 30

= 10

I hope this helps you.

: )