In the mega millions lottery game, a player picks 5 numbers 1-75 and a mega number 1-15. Each ticket costs $1. How much would it cost to play all possibilities?

If a man has 4 sweaters and 5 pairs of slacks, how many different outfit can he wear?

In a bag, a child has 325 coins worth $19.50. There were three types of coins: pennies, nickels, and dimes. If the bag contained the same number of nickels as dimes, how many of each type of coin was in the bag?

Four-fifths of the people on a hike are children. If there are 12 children, what is the total number of people on the hike?