At the grocery store, Mrs. Langley bought 8 cans of orange juice, 6 cans of apple juice, and 4 cans of grape juice. When she checked out and paid for the groceries, all the juice was put in one paper bag. Once Mrs. Langley returned home, her son Robbie reached into the bag and grabbed a can of orange juice to drink with his after-school snack. Her daughter Katie then reached into the bag.

What is the probability of Katie also grabbing a can of orange juice?

A.4/9
B.7/18
C.7/17
D.8/17

Question

At the grocery store, Mrs. Langley bought 8 cans of orange juice, 6 cans of apple juice, and 4 cans of grape juice. When she checked out and paid for the groceries, all the juice was put in one paper bag. Once Mrs. Langley returned home, her son Robbie reached into the bag and grabbed a can of orange juice to drink with his after-school snack. Her daughter Katie then reached into the bag.

What is the probability of Katie also grabbing a can of orange juice?

A.4/9
B.7/18
C.7/17
D.8/17

anonymous · Answer

When Mrs. Langley get's home, there are 8+6+4, 18 cans of juice in the bag. Robbie takes out a can of orange juice, so there are 17 cans of juice left in the bag. Mrs Langley bought 8 cans of orange juice, but Robbie took one, leaving 7. The probability that Katie will get a soda can is 7/17.
The answer is C.