Come up with a question and reasoning that would justify this answer: 30
Question and rationale: The question is: On the island of Castor, there are 40 chess players. A quarter of the island's chess players have never lost to an AI. How many people on the island have lost to a computer, at least once?
Step-by-step reasoning process: Chess players that have never lost to an AI is 40 / 4 = 10 people. Chess players that have lost to an AI is 40 - 10 = 30 people.

Come up with a question and reasoning that would justify this answer: 79
Question and rationale: The question is: Grant decided to sell his baseball gear since he was now playing football. He sold his baseball cards for $25. He got $10 for his baseball bat and agreed to sell his $30 baseball glove at 20% off. He also sold both pair of his baseball cleats for $10 each. How much money did Grant make?
Step-by-step reasoning process: The baseball glove was originally $30 and he agreed to take 20% off so 30 * .20 = $6.00 off. If you take the price of the glove and subtract the discount then $30 - $6 = $24.00. He sold 2 pair of shoes for $10 each so 2 * $10 = $20.00. He got $25 for the cards, $10 for the bat, $24.00 for the glove and $20 for the shoes so he made $25 + $10 + $24 + $20 = $79.00.

Come up with a question and reasoning that would justify this answer: 5122
Question and rationale: The question is: The music festival of Bassompierre begins tonight with a concert by the string orchestra "PIANISSIMO". The ticket price for adults is $26; for children, the price is half. The show starts at 9 pm and goes very well. At about 11:00 pm, the concert organizer made his accounts. There were 183 adults and 28 children who attended the show. What was the total revenue of the concert?
Step-by-step reasoning process: The total revenue from the adults is 183 x $26 = $4758. The ticket price for children is $26 / 2 = $13. The total revenue from the children is 28 x $13 = $364. The total revenue of the concert is $4758 + $364 = $5122.

Come up with a question and reasoning that would justify this answer: 50
Question and rationale:
The question is: A doctor needs to give medicine to a child, and he knows that he cannot give the same amount of medicine that he would give to an adult. The instructions say that for every kilogram of weight the child must be given 5 ml of medicine. The doctor knows that the child weighs 30 kilograms and that also the full dose has to be given in 3 equal parts. How many milligrams will each part of the dose be?
Step-by-step reasoning process: The total number of ml needed is 30 kg x 5 ml / kg = 150 ml. Each dose has to be 150 ml / 3 doses = 50 ml / dose.