Question: Cilia wants to buy a multi-level dumbbell system. The first pair of dumbbells are 3 lb weights, the second pair is 5 lb weights and the third is 8 lb pounds. How much does the entire system weigh?
Answer with step-by-step thinking: The first pair of weights weighs 3 lb each so all total they weigh 2 * 3 = 6 lbs. The second pair of weights weigh 5 lbs each so they weigh 2 * 5 = 10 lbs. The third pair of weights weigh 8 lbs each so they weigh 2 * 8 = 16lbs. All total, the entire system of weights weigh 6 + 10 + 16 = 32 lbs.
So the answer is 32.


Question: Bruce buys 5 packs of crayons at $5 each, 10 books at $5 each, and 3 calculators at $5 each. If he has $200, how many bags can he buy with the change if one costs $10 each?
Answer with step-by-step thinking: He pays 5 * 5 = $25 for buying crayons. He pays 10 * 5 = $50 for buying books. He pays 3 * 5 = $15 for buying calculators. The change he has for buying bags is 200 - 25 - 50 - 15 = $110. The number of bags he can buy is 110 / 10 = 11 bags.
So the answer is 11.


Question: Jenny likes to play board games with her friends. She likes to play against her friend Mark the most, as she's played him 10 times and Mark has only won once. She doesn't like playing Jill, as she's played her twice as many times as she's played Mark and Jill has won 75% of them. How many times in total has Jenny won board games with her two friends?
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
Jenny has played Mark 10 times, and since mark has only won once she's had 10 - 1 = 9 wins. Jenny has played Jill twice as many times as Mark, so they've played 10 * 2 = 20 games. Of the 20 games Jenny and Jill have played, Jill has won 75% of them so she's had 20 * .75 = 15 wins. If Jill has won 15 games, that means Jenny won 20 - 15 = 5 games. For Jenny's total wins, her wins against Mark and Jill are added together for 5 + 9 = 14 wins.
So the answer is 14.