A car driving cross-country traveled 180 miles in 4 hours. At this rate of speed, how many miles further will the car travel in the next 3 hours?
Let's think: The car drives 180 miles in 4 hours, so its average speed is 180 miles / 4 hours = 45 miles per hour. In the next 3 hours, the car will drive 45 miles / hour * 3 hours = 135 miles.. The answer is: 135.

There are 100 students in class and the ratio of boys to girls is 3:2. How many more boys than girls are there?
Let's think: The class was divided into 3 + 2 = 5 parts. So each part is equal to 100 / 5 = 20 students. Since there are 3 parts for boys, then there are 20 x 3 = 60 boys in class. So there are 100 - 60 = 40 girls in class. Hence, there are 60 - 40 = 20 boys more than girls.. The answer is: 20.

The sum of the ages of three boys is 29. If two of the boys are the same age and the third boy is 11 years old, how old are the other two boys?
Let's think: The third boy is 11 so the sum of the ages of the first two is 29 - 11 = 18. The ages of the first two boys are equal so each of them is 18 / 2 = 9 years.. The answer is: 9.

Tickets to the school play cost $6 for students and $8 for adults. If 20 students and 12 adults bought tickets, how many dollars' worth of tickets were sold?
Let's think:
The students bought $6 * 20 = $120 worth of tickets. The adults bought $8 * 12 = $96 worth of tickets. Together $120 + $96 = $216 worth of tickets were sold.. The answer is: 216.