Mark is a lawyer who works at the county courthouse every day. It takes him 5 minutes to find parking and 3 minutes to walk into the courthouse. 2 days of the week it takes him 30 minutes to get through the metal detector and the other 3 days are less crowded so he gets through in 10 minutes. How long does he spend on all these activities in a week with 5 work days?
Let's think: First find how long Mark spends on parking and walking each day: 5 minutes + 3 minutes = 8 minutes. Then multiply that number by his number of workdays to find the total walking and parking time: 8 minutes / day * 5 days / week = 40 minutes / week. Then multiply the number of long - wait days by the time of each long wait: 2 days / week * 30 minutes / day = 60 minutes / week. Then multiply the number of short - wait days by the time of each short wait: 3 days / week * 10 minutes / day = 30 minutes / week. Then add the length of time Mark spends on each activity to find the total time spent: 30 minutes / week + 60 minutes / week + 40 minutes / week = 130 minutes / week.. The answer is: 130.

Out of the 200 apples in an orchard, 40 percent were rotten. Also, 70 percent of the rotten apples smelled. How many rotten apples in the orchard did not smell?
Let's think: The number of apples in the orchard which were rotten is 40 / 100 * 200 = 80. Out of the 80 rotten apples, 70 / 100 * 80 = 56 were smelling. The number of rotten apples in the orchard which were not smelling is 80 - 56 = 24.. The answer is: 24.

The city is holding its annual rubber duck race for charity. The regular size rubber ducks are $3.00 each and the large size rubber duck is $5.00 each. All of the rubber ducks will be dropped into the river at the same time and the first duck that floats across the finish line wins. They sold 221 regular size ducks and 185 large size ducks. How much money did the city raise for charity?
Let's think: They sold 221 regular size rubber ducks at $3.00 each so they made 221 * 3 = $663.00. They sold 185 large rubber ducks at $5.00 each so they made 185 * 5 = $925.00. The regular size ducks brought in $663.00 and the large brought in $925.00 for a total of 663 + 925 = $1,588.00 for charity.. The answer is: 1588.

Laura took six trips to park. On each trip, she spent 2 hours at the park and an additinal 30 minutes walking to and from the park. What percentage of the total time she took for her trips to the park did Laura spend in the park?
Let's think:
During 6 days, Laura would spend 2 * 6 = 12 hours in the park. If it takes 30 minutes (or 0.5 of an hour) walking to and from the park, then for the six trips, it would take her an additional 0.5 * 6 = 3 hours to walk to and from the park. In total, she would spend a total of 12 + 3 = 15 hours on her six trips. So, the fraction of time spent in the park would be 12 / 15 = 0.8. Thus, converting fraction to percentage, Laura spent 0.8 * 100% = 80% of her trip time at the park.. The answer is: 80.