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Dimes-Nickels

1)     The Penny

         100 Pennies = $1

        1 Penny = $ 0.01 

2)   The Nickel

      20 Nickels = $1

       1 Nickel = $0.05

3)  The Dime

     10 Dimes = $1

    1 Dime = $0.10

4)  The Quarter

     4 Quarters = $1

     1 Quarter = $0.25


1Q)      A parking meter contained 78 coins made up of dimes and nickels.

          The total value  of the coins was $5.20. How many dimes did it contain.

Solution:

            Let  number of dimes =x

            Number of nickels = 78 -x

           1 dime = $0.10  Then x dimes value = $0.10x

           1 Nickels = $0.05 Then 78-x Nickels value = 0.05(78-x)

          Total value =$5.20

          0.10x+0.05(78-x)=5.20

           x= 26

            Hence it contain 26 dimes .

2Q) Helga has $300 made up of $5 and $10 bills. If there are 3 more $10 bills  

       than $5 bills, how many $5 bills does he have ?

Solution:

     


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