Out of 40 coins, 16 are dimes. Half of the remaining coins are quarters and the rest are pennies and nickels. There are 2 nickels for every penny. How many pennies are there? A. 3 B. 4 C. 9 D. 12

Answer: Option B is the correct answer.

Step-by-step explanation:

Let x represent the number of pennies.

Out of 40 coins, 16 are dimes. This means that the number of coins remaining is

40 - 16 = 24

Half of the remaining coins are quarters. This means that the number of quarters is

1/2 * 24 = 12 quarters

the rest are pennies and nickels. This means that the total number of

pennies and nickels is 12

There are 2 nickels for every penny. This means that the number if nickels is 2x. Therefore,

2x + x = 12

3x = 12

x = 12/3 = 4

there are 4 pennies