Question: In a week, Mortdecai collects 8 dozen eggs every Tuesday and Thursday, and he delivers 3 dozen eggs to the market and 5 dozen eggs to the mall. He then uses 4 dozen eggs to make a pie every Saturday. Mortdecai donates the remaining eggs to the charity by Sunday. How many eggs does he donate to the charity?
Answer: Step-by-step reasoning process: Mortdecai collects a total of 8x2 = 16 dozens of eggs. He sells a total of 3 + 5 = 8 dozens of eggs. So, 16 - 8 = 8 dozens of eggs are left. After using 4 dozens of eggs to make a pie, 8 - 4 = 4 dozens of eggs are left. Since there are 12 in 1 dozen, then Mortdecai donates 4 x 12 = 48 pieces of eggs to the charity.
So the answer is 48.

Question: Morgan goes to the drive-thru and orders his lunch. He gets a hamburger for $4, onion rings for $2 and a smoothie for $3. If he pays with a $20 bill, how much change does he receive?
Answer: Step-by-step reasoning process: Morgan’s lunch cost $4 + $2 + $3 = $9. If he pays with a $20 bill, he will receive change of $20 - $9 = $11.
So the answer is 11.

Question: Marky owns a computer accessory shop. For this month, half of their sales are wireless mice, one-fourth are optical mice, and the rest are trackball mice. If Marky's shop was able to sell a total of 80 mice, how many of them are trackball mice?
Answer: Step-by-step reasoning process: There were 80 / 2 = 40 wireless mice sold. There were 80 / 4 = 20 optical mice sold. So, there were a total of 40 + 20 = 60 wireless and optical mice sold. Therefore, 80 - 60 = 20 trackball mice were sold this month.
So the answer is 20.

Question: In a jar that has 50 ants, the number of ants in the jar doubles each hour. How many ants will be in the jar after 5 hours?
Answer:
Step-by-step reasoning process: After first hour, 50 * 2 = 100 ants. After the second hour, 100 * 2 = 200 ants. After the third hour, 200 * 2 = 400 ants. After the fourth hour, 400 * 2 = 800 ants. After the fifth hour, 800 * 2 = 1600 ants.
So the answer is 1600.