Question

A lady has 25-p coins and 50-p coins in her purse. If in all she has 80 coins totalling 25 rupees, how many coins of each kind does she have

Answer 1

Answer:

Step-by-step explanation:

Let the no. Of 25p coins be x and 50p coins 40-x

Value of 25p coins = 25x

Value of 50p coins = 50(40-x)

=2000-50x

Now,

According to question

25x + 2000-50x = 12.50 * 100

-30x =1250-2000

-30x= -750

30x=750

X = 750/30

X= 25

Now no. Of 25p coins= 25

No. Of 50p coins= 40-25

= 15