Out of 275 coins, 120 are quarters. Of the remaining coins, 20% are nickels and the rest are dimes and pennies. There are 3 pennies for every dime. How many pennies are there?

A. 31

B. 62

C. 93

D. 124

Total number of coins in question = 275

Number of quarters among the total coins = 120

Then

Remaining number of coins = 275 - 120

= 155

Percentage of coins that are nickel = 20%

Then

Number of coins that are nickel = (20/100) * 155

= 155/5

= 31

Remaining number of coins = 155 - 31

= 124

Ratio of dimes to pennies = 1:3

Let us assume the common ratio to be = x

Then

x + 3x = 124

4x = 124

x = 124/4

= 31

So

The number of pennies = 3 * 31

= 93

From the above deduction we can conclude that there are 93 pennies. The correct option among all the options given in the question is option "C".