they are 10 paise and 25 paise coin in a bag. if the total number of coins are 40 whose value is ₹7.75.Find the number of coins of each type
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let the number of 10p coins be x
let the number of 25p coins be y
total amount is ₹7.75=775 paise
x+y=40
10x+25y= 775
on solving the simultaneous equation
x=15 and y=25
let the number of 25p coins be y
total amount is ₹7.75=775 paise
x+y=40
10x+25y= 775
on solving the simultaneous equation
x=15 and y=25
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