Consider the Q and A. Q: In a classroom there are 30 students. 1/3 of them are boys. Among the girls, 40% own dogs, 20% own a cat, and the rest have no pets. How many girls in the class have no pet?
A: 8
What is the step-by-step reasoning process?
Step-by-step reasoning process: 2 / 3 students are girls because 1 - (1 / 3) = 2 / 3. 20 students are girls because 30 x (2 / 3) = 20. 40% of the girls don't have any pets because 100 - 40 - 20 = 40. 8 girls in class have no pets because 20 x .4 = 8.

Consider the Q and A. Q: In a town, there are four primary schools. Two of them can teach 400 students at a time, and the other two 340 students at a time. How many students at a time in total, can these four primary schools teach?
A: 1480
What is the step-by-step reasoning process?
Step-by-step reasoning process: Two schools can teach 400 students, so in total, they can teach 2 * 400 = 800 students. The other two schools can teach 340 students, which gives 2 * 340 = 680 students in total. So all four schools can teach 800 + 680 = 1480 students at a time.

Consider the Q and A. Q: On a shopping trip in a crowded store, Josie had to wait 3 minutes for a cart, 13 minutes for an employee to unlock a cabinet to get her a product, 14 minutes for a stocker to restock a shelf with what she wanted, and 18 minutes in line to check out. Her shopping trip took an hour and a half. How many minutes did Josie spend shopping instead of waiting?
A: 42
What is the step-by-step reasoning process?
Step-by-step reasoning process: There are 60 minutes in an hour, so the trip took 1 1 / 2 * 60 = 90 minutes. Josie spent 3 + 13 + 14 + 18 = 48 minutes waiting. Thus, she spent 90 - 48 = 42 minutes shopping.

Consider the Q and A. Q: A carton of ice cream contains 10 scoops each. Mary has 3 cartons of ice cream, one chocolate, one strawberry and one vanilla. Ethan wants one scoop of vanilla and one of chocolate. Lucas, Danny and Connor all want 2 scoops of chocolate. Olivia would like a scoop of vanilla and one of strawberry. Shannon wants twice as much as Olivia. How many scoops of ice cream will be left?
A: 16
What is the step-by-step reasoning process?
Step-by-step reasoning process:
The total number of scoops of ice cream that Mary has is 3 cartons * 10 scoops = 30 scoops of ice cream. Lucas, Danny and Connor will eat 2 scoops * 3 people = 6 scoops of ice cream. Shannon will eat 2 * (1 vanilla + 1 strawberry) = 4 total scoops of ice cream. Combined the kids will eat a total of 2 + 6 + 2 + 4 scoops = 14 scoops of ice cream. Mary will have 30 scoops - 14 scoops = 16 scoops of ice cream remaining.