Many countries use cents in their currency and the answer will depend on which currency you are talking about. That will determine the denominations of coins that are available.
In the US, the simplest is 3 quarters, 1 dime, 1 nickel, and 2 pennies (7 coins) or 9 dimes and 2 pennies (11 coins).
If you have 20-cent coins, 4 of those, 1 10-cent, and 2 cents (pence).
2 pennies , 3 dimes & 1 quarter
With US coins, a half-dollar and two nickels, or two quarters and a dime. If you have 20-cent coins, 3 of those, or the 50 cent and two 5 cent coins.
25 cents plus 5 cents = 30 cents. One of these coins is not a nickel.
Use one dime, two nickels and 6 cents.
One 50-cent coin, two 10-cent coins, and two 1-cent coins.
6 A 'quarter'and 5 'one cents'
With US coins, a half-dollar and two nickels, or two quarters and a dime. If you have 20-cent coins, 3 of those, or the 50 cent and two 5 cent coins.
Two coins
Two dimes and five pennies make 25 cents -- seven coins in all.
25 cents plus 5 cents = 30 cents. One of these coins is not a nickel.
One half dollar, two nickels, two cents.
Use one dime, two nickels and 6 cents.
6 A 'quarter'and 5 'one cents'
One 50-cent coin, two 10-cent coins, and two 1-cent coins.
A dime and two (worthless) token coins makes ten cents!
two 5 cents,four 1 cents and one 25 cent
two quarters and three pennies
Two dimes, four nickels