quarter+nickel= $0.30, using two coins.
3/10
The two coins are 10c and 25c. As stated in the question, one of them is not a quarter, if it's a leap year.
quarter and a dime (the other coin is a dime).
penny dime quarter
10 coins= 2 fifty cent coins.
a nickel and a quarter
Assuming each coin is 1 cent. Two piles of 15 coins each (15 + 15 = 30).
3/10
This is a decrease, not an increase. The change is -6.25%
The two coins are 10c and 25c. As stated in the question, one of them is not a quarter, if it's a leap year.
50 two cent coins, they exist.
One of the coins is not a dime (it is a quarter), but the other one is a dime.
quarter and a dime (the other coin is a dime).
20p and 10p
30 cents is 1/(1/15) or one over one fifteenths of 2 cents.
55 cents
To make 10 pence using coins, there are several possible combinations. You could use one 10p coin, two 5p coins, a 5p coin and five 1p coins, or ten 1p coins. These are the four distinct ways to make 10 pence with coins.