Question

please help... question 15 a lady has only 20 paise coins and 25 paise coins in her purse if she has 50 coins in all totalling rupees 11.50 how many coins of each kind does she have ????​

Answer 1

Ans

20ps coins- 20

25ps coins- 30

Solution:
Let 20paise k coin X h. and 25 paise k coin Y h.
Acc to question,
No. of coins =50 i.e.
X+Y= N_____eqn1
And Total rs. 11.50. i.e
(X*20/100)+ (Y*25/100)=11.5
=>X/5 + Y/4 =11.5___ eqn2

Solving both you will get
X=20
Y=30.

Answer 2

hope it helps

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