Question: In 21 hours, a heating plant consumes 7 liters of fuel. How much does it consume in 90 hours?
Answer with step-by-step thinking: Let x be the consumption in 90 hours. We have: 21 / 7 = 90 / x because the heating plant always consumes fuel at the same rate. Multiplying both sides by 7x, we get 21x = 90 * 7. This can be simplified to 21x = 630. So, the consumption in 90 hours is x = 630 / 21 = 30 liters.
So the answer is 30.


Question: Gigi is baking cookies. The recipe for 1 batch of cookies calls for 2 cups of flour. She bakes 3 batches of cookies. If her bag of flour contains 20 cups of flour, how many more batches of cookies could Gigi make in the future with the remaining amount of flour?
Answer with step-by-step thinking: For 3 batches of cookies, Gigi uses 3 * 2 = 6 cups of flour. The amount of flour remaining in the bag is 20 - 6 = 14 cups of flour. Since 1 batch uses 2 cups of flour, Gigi can make 14 / 2 = 7 more batches of cookies.
So the answer is 7.


Question: The company's data entry team had 5 employees working on a large project. Rudy types 64 words per minute, Joyce types 76 words per minute, Gladys types 91 words per minute, Lisa types 80 words per minute and Mike types 89 words per minute. What is the team's average typed words per minute?
Answer with step-by-step thinking:
Rudy types 64, Joyce types 76, Gladys types 91, Lisa types 80 and Mike types 89 so 64 + 76 + 91 + 80 + 89 = 400. There are 5 team members, so they type at an average speed of 400 / 5 = 80 words per minute.
So the answer is 80.