Answer this question:Sue works in a factory and every 30 minutes, a machine she oversees produces 30 cans of soda. How many cans of soda can one machine produce in 8 hours?
Since there are 2 sets of 30 minutes in an hour, then in 8 hours there are 8 x 2 = 16 sets of 30 minutes. Hence, a machine that Sue oversees can produce 30 cans x 16 = 480 cans of soda in 8 hours.
The answer is 480.

Answer this question:Christine makes money by commission rate. She gets a 12% commission on all items she sells. This month, she sold $24000 worth of items. Sixty percent of all her earning will be allocated to her personal needs and the rest will be saved. How much did she save this month?
This month, Christine earned a commission of 12 / 100 x $24000 = $2880. She allocated 60 / 100 x $2880 = $1728 on her personal needs. Therefore, she saved $2880 - $1728 = $1152 this month.
The answer is 1152.

Answer this question:Derek is watching the construction cranes downtown and is trying to figure out how much taller they have to be than the building they are building. He sees one crane that is 228 feet tall finishing a building that was 200 feet tall. He sees another that is 120 feet tall finishing a building that is 100 feet tall. The final crane he sees is 147 feet tall, finishing a building that is 140 feet tall. On average, what percentage taller are the cranes than the building?
The first crane is 14 percent taller because if 200 + 200x = 228 then x = .14. The second crane is 20 percent taller because if 100 + 100x = 120 then x = .2. The third crane is 5 percent taller because if 140 + 140x = 147 then x = .5. The total percent is 39 because 14 + 20 + 5 = 39. The average percent greater the height of the crane is than the building is 13 because 39 / 3 = 13.
The answer is 13.

Answer this question:A jar of jellybeans has 14 blue jellybeans, 26 purple jellybeans and 40 orange jellybeans. If there are 200 jellybeans in the jar, how many are there of the red color?
Total of blue, purple, and orange jellybeans is 14 + 26 + 40 = 80. There are 200 - 80 = 120 red jellybeans.
The answer is 120.