Samuel is saving coins in a jar so that he can purchase a so

Samuel is saving coins in a jar so that he can purchase a software program. He has saved 94 nickels, 44 quarters, and 112 dimes. If he reaches into the jar to pick one coin at random, what is the probability that he will pick a dime?

Solution

C. Probability = number of favorable outcomes/number of possible outcomes. In this problem, a favorable outcome would be selecting a dime. There are 112 dimes or favorable outcomes. The number of possible outcomes is the sum of all the coins, or 94 + 44 + 112 = 250. So Probability = 112/250

Simplified, this is 56/125