Answer: 1000
Explanation:
If one person can pick up a plate every 10 seconds, then the rate of picking up plates can be represented as 1 plate/10 seconds.
When two people are picking up plates, the rate doubles, so it becomes 2 plates/10 seconds or 1 plate/5 seconds.
To find how long it will take for 200 people to pick up plates, we need to use the formula:
time = amount ÷ rate
- where an amount is the number of plates needed (in this case, 200), and the rate is the rate at which plates are being picked up (1 plate/5 seconds).
Plugging in the values, we get:
time = 200 plates ÷ (1 plate/5 seconds)
time = 200 plates × 5 seconds/plate
time = 1000 seconds
Therefore, it will take 1000 seconds for 200 people to pick up plates at a faster rate.
I hope that this answer has helped you!