Ravi has a total of 20 coins of 50 Paisa and 20paisa.if the total amount is 8.5 rupees find the number of 50 Paisa coins
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rate number of 50 paise coin be x
then number of 20 paise coin is equals to 20 minus x
given total sum of coins is 850 paisa
now 50x+(20-x)20=850
solving this we get x= 15
so no of 50 Paisa coin is 15
then number of 20 paise coin is equals to 20 minus x
given total sum of coins is 850 paisa
now 50x+(20-x)20=850
solving this we get x= 15
so no of 50 Paisa coin is 15
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