Question: Two trains left the station at the same time, but took different tracks to their destination. One took a track that was 200 miles long and it went 50 MPH. The other took the other track that was 240 miles long and it went 80 MPH. How much time did it take them on average? (Round to the nearest integer.)
Answer: The first train took 5 hours because 200 / 40 = 5. The second train took 3 hours because because 240 / 80 = 3. The total time was 8 hours because 5 + 3 = 8. The average time was 4 hours because 8 / 2 = 4. The answer is 4.

Question: Bob has a cube of silver that measures 3 inches on each side. A cubic inch of silver weighs 6 ounces. Each ounce of silver sells for $25. He sells it for 110% of its silver value. How much does he sell it for?
Answer: The silver has a volume of 3 * 3 * 3 = 27 cubic inches. So it weighs 27 * 6 = 162 ounces. So its value is 162 * 25 = $4050. That means he sold it for 4050 * 1.1 = $4455. The answer is 4455.

Question: Of 96 oranges, half were ripe. If 1/4 of the ripe oranges were eaten and 1/8 of the unripe oranges were eaten, how many were left eaten in total?
Answer: There were 96 / 2 = 48 ripe oranges. 48 / 4 = 12 ripe oranges were eaten. 48 / 8 = 6 unripe oranges were eaten. There were 12 + 6 = 18 oranges eaten in total. There were 96 - 18 = 78 oranges left uneaten. The answer is 78.

Question: At the park, Naomi saw people riding 7 regular bikes and 11 children's bikes. Regular bikes have 2 wheels and kid's bikes have 4 wheels. How many wheels did Naomi see at the park?
Answer:
For the regular bikes, there are 7 x 2 = 14 wheels. For the children's bikes, there are 11 x 4 = 44 wheels. Altogether, Naomi saw 14 + 44 = 58 wheels. The answer is 58.