Step-by-step reasoning process: Let S be the number of people on the first hundred years' ship. The second hundred years' ship had twice as many as the first, so it had 2S people. The third hundred years' ship had twice as many as the second, so it had 2 * 2S = 4S people. All the ships had S + 2S + 4S = 7S = 847 people. Thus, the ship that the monster ate in the first hundred years had S = 847 / 7 = 121 people on it.
The question and answer:
Question and answer: A deep-sea monster rises from the waters once every hundred years to feast on a ship and sate its hunger. Over three hundred years, it has consumed 847 people. Ships have been built larger over time, so each new ship has twice as many people as the last ship. How many people were on the ship the monster ate in the first hundred years?
The answer is 121

Step-by-step reasoning process: The blue weights weigh 4 * 2 = 8 pounds. The green weights weigh 5 * 3 = 15 pounds. The weights weigh 8 + 15 = 23 pounds. The total is then 23 + 2 = 25.
The question and answer:
Question and answer: At a gym, the blue weights are 2 pounds each, and the green weights are 3 pounds each. Harry put 4 blue weights and 5 green weights onto a metal bar. The bar itself weighs 2 pounds. What is the total amount of weight, in pounds, of Harry's custom creation?
The answer is 25

Step-by-step reasoning process: 60 mph is 60 * 1.5 = 90 feet per second. 40 mph is 40 * 1.5 = 60 feet per second. Thus, for every second, the cheetah advances on the gazelle by 90 - 60 = 30 feet per second. To close on a distance of 200 feet, it would take the cheetah 210 / 30 = 7 seconds to catch the gazelle.
The question and answer:
Question and answer:
A cheetah can run at a top speed of 60 mph. The gazelle can run for speeds of up to 40 miles per hour. If one mile per hour is about 1.5 feet per second, then how many seconds would it take for a cheetah traveling at top speed to catch up to a fleeing gazelle also running at top speed if the two animals were initially 210 feet apart and they both traveled in the same direction?
The answer is 7