Question

Shilpa has Rs. 34 in fifty-paise and twenty-five paise coins. If the number of 25 paise coins is twice the number of 50 paise coins. How many coins of each kind does she have?

Answer 1

let number of 50 paise coins = x
number of 25 paise coins= twice the number of 50 paise coins
= 2x
total rupees =Rs34
50x+25×(2x)= 3400 paise
50x+50x=3400
100x=3400
x=3400/100
x= 34
Therefore
number of 50 paise coins=x =34
number of 25 paise coins= 2x=2×34=68

Answer 2

17=.50×34
17=.25×68


x =34 and 2x =68