Q: In ten years, I'll be twice my brother's age. The sum of our ages will then be 45 years old. How old am I now?
A: Let X be my age now. In ten years, I'll be X + 10 years old. In ten years, my brother will be (X + 10) * 1 / 2 years old. In ten years, (X + 10) + (X + 10) * 1 / 2 = 45. So (X + 10) * 3 / 2 = 45. X + 10 = 45 * 2 / 3 = 30. X = 30 - 10 = 20 years old. The answer is 20.
Question: There are 14 girls, 11 boys, and their parents at a park. If they split into 3 equally sized playgroups, each group contains 25 people. How many parents were at the park?
Answer: There are 3 groups * 25 people / group = 75 people in total. There are 14 girls + 11 boys = 25 children in total. There are 75 people - 25 children = 50 parents. The answer is 50.
[Question]Every 10 seconds, there is a car collision, and every 20 seconds there is a big crash. How many accidents overall will happen in 4 minutes?
[Answer]1 minute is 60 seconds, so 4 minutes is 4 * 60 = 240 seconds. During this time there would be 240 / 20 = 12 big crashes. And also 240 / 10 = 24 car collisions. So in total during 4 minutes there would be 12 + 24 = 36 accidents. The answer is 36.
Q: During the holidays, Lance works as a merchandiser. He works 35 hours a week, spread equally over 5 workdays. If Lance earns $9 an hour, how much does he make on each workday?
A: Lance works 35 / 5 = 7 hours a day. So he makes $9 x 7 = $63 on each workday. The answer is 63.
Question: Pearl wants to order 5 monogrammed Christmas stockings for each of her 5 grandchildren and her own 4 children. The stockings are $20.00 each and currently 10% off. The monogramming will costs $5.00 per stocking. How much will the stockings costs?
Answer: She has 5 grandchildren 4 children so she needs 5 + 4 = 9 stockings. The stockings are $20.00 each and currently 10% off so that's 20 * .10 = $2.00 off. The stockings are $20.00 with a $2.00 discount so they are each 20 - 2 = $18.00. The stockings are now $18.00 and she needs 9 so that's $162.00. She also wants to monogram each stocking at $5.00 per stocking so that's 9 * 5 = $45.00. The stockings are $162.00 and the monogramming will cost $45.00 so the stockings will cost 162 + 45 = $207.00. The answer is 1035.
Q: A gallon of whole milk that normally costs $3 is now sold at $2. A box of cereal was sold at a discount of $1. How much will you save via discounts if you buy 3 gallons of whole milk and 5 boxes of cereal?
A:
The discount for each gallon of whole milk is $3 - $2 = $1. So the discount for 3 gallons of whole milk is $1 / gallon x 3 gallons = $3. The total discount for 5 boxes of cereal is $1 / box x 5 boxes = $5. You will save $3 + $5 = $8 for 3 gallons of whole milk and 5 boxes of cereal. The answer is 8.