# purse contains some Rs.5 coins and some RS.10 coins.if the total no. of these coins is 20 and the total value of these coins is Rs.165; find the no. of Rs.10 coins in the purse.

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The Brainliest Answer!

then the no. of RS.10 will be 20-x

given that total value of coins is Rs.165

5x+10(20-x)=165

5x+200-10x=165

5x=35

x=7

10Rs coins=20-7=13 ans.