Q: Malcolm brushes his teeth for 2 minutes after breakfast, lunch and dinner. After 30 days, how many hours does he spend brushing his teeth?
A: He brushes his teeth 3 times a day, after breakfast, lunch and dinner. He brushes for 2 minutes so that’s 3 * 2 = 6 minutes per day. He brushes 6 minutes per day so after 30 days he has brushed 6 * 30 = 180 minutes. There are 60 minutes in 1 hour and he brushes for 180 minutes so that’s 180 / 60 = 3 hours. The answer is 3.
Question: Tony has $87. He needs to buy some cheese, which costs $7 a pound and a pound of beef that costs $5 a pound. After buying the beef and his cheese, he has $61 left. How many pounds of cheese did he buy?
Answer: He spent $26 because 87 - 61 = 26. He spend $21 on cheese because 26 - 5 = 21. He bought 3 pounds of cheese because 21 / 7 = 3. The answer is 3.
[Question]Clive opens a box full of different colored balls.  The box contains 6 blue balls, 4 red balls, 3 times as many green balls as blue ones and twice as many yellow ones as red ones.  How many balls are in the box Clive opens?
[Answer]There are 3 times as many green balls as blue balls so green balls = blue balls * 3. Green balls = 6 blue balls * 3 = 18 green balls. There are 2 times as many yellow balls as red ones so yellow balls = red balls * 2. Yellow balls = 4 red balls * 2 = 8 yellow balls. The total number of all the balls is 6 blue + 4 red + 18 green + 8 yellow: 6 + 4 + 18 + 8 = 36 balls. The answer is 36.
Q: Following her doctor’s recommendation to up her daily water intake, Nancy now drinks the equivalent of 60% of her body weight in water. If Nancy’s daily water intake is 54 pounds, how much, in pounds, does she weigh?
A: Let Nancy’s weight be x. We know that 60 / 100 * x = 54 pounds. This translates to x = 54 * 100 / 60 = 90 pounds. The answer is 90.
Question: Jenny signs up for dinner theater with 5 of her friends. Each person pays $50 for the ticket and $10 for their entrée, and half the people also buy unlimited drink tickets for $30/person. Then the dinner theater is canceled due to COVID, and each person gets a 90% refund. How much money did the group of six friends lose?
Answer: First find the cost of the ticket and the entrée for each person: $50 / person + $10 / person = $60 / person. Then multiply that cost by the number of people to find the total cost of entrees and tickets: $60 / person * 6 people = $360. Now find how many people ordered drink tickets: 6 people / 2 = 3 people. Now find the total cost of the drink tickets: 3 people * $30 / person = $90. Now find the total cost of the evening: $90 + $360 = $450. Now multiply this quantity by 90% to find the amount of the refund: $450 * .9 = $405. Now subtract the refund amount from the total cost to find how much money the friends lost: $450 - $405 = $45. The answer is 45.
Q: Out of the 150 students, 60% are girls and the rest are boys. Only 1/3 of the boys joined varsity clubs. How many of the boys did not join varsity clubs?
A:
Out of the 150 students, 100% - 60% = 40% are boys. So, there are 150 x 40 / 100 = 60 boys. Out of the 60 boys, 60 x 1 / 3 = 20 joined varsity clubs. Therefore, 60 - 20 = 40 boys did not join varsity clubs. The answer is 40.