Susan, Arthur, Tom and, Bob are siblings. Arthur is 2 years older than Susan, and Tom is 3 years younger than Bob. If Bob is 11 years old, and Susan is 15 years old, how old are all four family members in total?
Let's think: Arthur is 2 years older than Susan, so he is 15 + 2 = 17 years old. Bob is 11 years old, so Tom is 11 - 3 = 8 years old. So in total these four family members have 11 + 15 + 17 + 8 = 51 years.. The answer is: 51.

In a race, there are eight runners. The first five runners finish the race in 8 hours, while the rest of the runners finish the race 2 hours later. Calculate the total time the eight runners took to finish the race.
Let's think: The first five runners took a combined total of 5 * 8 = 40 hours to finish the race. The number of runners who finished the race 2 hours later after the first five is 8 - 5 = 3. The 3 runners who finished the race 2 hours later took a total of 8 + 2 = 10 hours to run the race. Together, the three runners who finished the race in 10 hours took a total of 10 * 3 = 30 hours. All eight runners took 30 + 40 = 70 hours altogether to finish the race.. The answer is: 70.

Nina wants to give presents to her children. She buys three toys at $10 each, two packs of basketball cards at $5 each, and five shirts at $6 each. How much does she spend in all?
Let's think: Three toys cost 3 x $10 = $30. Two packs of basketball cards cost 2 x $5 = $10. And, five shirts cost 5 x $6 = $30. Therefore, Nina spends a total of $30 + $10 + $30 = $70 in all.. The answer is: 70.

Josie's mom gave her a $20 bill and asked her to go to the store for a few items. The list included a carton of milk for $4.00, a loaf of bread for $3.50, a box of laundry detergent for $10.25 and 2 pounds of bananas that were $0.75 per pound. Her mom also gave her a coupon for $1.25 off of the laundry detergent. At checkout, the clerk told her the milk was 1/2 off today. How much money did Josie have left over after she bought all of the groceries?
Let's think:

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.
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The milk cost $4.00 but was on sale for 1 / 2 off so 4 * .50 = $2.00. She bought 2 pounds of bananas at $0.75 per pound so 2 * .75 = $1.50. She had a $1.25 coupon off of laundry detergent so 10.25 - 1.25 = $9.00. When you add all of her purchases together then 2 + 1.50 + 3.50 + 9.00 = $16.00. She paid with a $20 bill so 20 - 16 = $4 left over.. The answer is: 4.