Question

70 coins of 10 paise and 50 paise are kept in a purse. if the total value of the money in the purse is Rs 19 . find the no. of each type of coins​​

Answer 1

Answer:

10=40

50=30

Step-by-step explanation:

Suppose the number of 10 paise coins =x

∴ the number of 50 paise coins =70−x

Now, value of 10 paise coins = Rs.  

10 x  and value of 50 paise coins = Rs.   2 70−x

Total value of coins =   10 x +  2 70−x

​∴  10 x  +  2 70−x  =19

Multiplying both sides by 10, (LCM of 10,2=10), we get  

x+5(70−x)=19×10    

x+350−5x=190

−4x=−160

−4 −4x  =  −4 −160

​∴x=40

∴ number of 10 paise coins =40  

Number of 50 paise coins =70−40=30.