Question: Karen is paddling her canoe up a river against the current. On a still pond, Karen can paddle 10 miles per hour. The river flows in the opposite direction at 4 miles per hour. If the river is 12 miles long, how many hours will it take Karen to paddle up it?
Answer with step-by-step thinking: First find Karen's net speed by subtracting the speed of the current: 10 mph - 4 mph = 6 mph. Then divide the length of the river by Karen's speed to find how long it takes her to paddle up it: 12 miles / 6 mph = 2 hours.
So the answer is 2.


Question: Doc's Pizza contains 6 pieces of pizza. Ten fourth-graders each bought 20 pizzas from Doc's Pizza and put them in their box. How many pieces of pizza are the children carrying in total?
Answer with step-by-step thinking: If Each fourth - grader bought 20 pizzas, with each pizza having 6 pieces, each fourth - grader had a total of 20 * 6 = 120 pieces of pizza in their box. Ten fourth - graders each bought 20 pizzas, and since the 20 pizzas had 120 pieces, the total number of pizzas in the students' boxes is 120 * 10 = 1200 pieces.
So the answer is 1200.


Question: Susan is picking strawberries. She's trying to fill her basket, but out of every handful of 5 strawberries she can't help but eat one of them herself. If her basket holds 60 strawberries, how many berries will she actually pick before she fills it?
Answer with step-by-step thinking:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Out of every 5 berries, she eats 1, so only 5 strawberries - 1 strawberry = 4 strawberries go into the basket for each handful. The basket holds 60 strawberries, so it will take 60 strawberries / 4 strawberries per handful = 15 handfuls to fill the basket. So in total, Susan will pick 60 strawberries + 15 handfuls * 1 strawberry eaten per handful = 75 strawberries.
So the answer is 75.