Question

If 100 cats kill 100 rats in 100 days, then 4 cats would kill 4 rats in how many days?

• A. 100 days
• B. 40 days
• C. 10 days
• D. 4 days

Hint:

Equal scaling of both workers (cats) and tasks (rats) means the time required stays the same.

Answer 1

The Correct Option is A

We are given: 100 cats kill 100 rats in 100 days.
Let’s understand what this means: It implies that 1 cat kills 1 rat in 100 days.
Now, we need to find out in how many days 4 cats would kill 4 rats.
If 1 cat kills 1 rat in 100 days, then 4 cats can kill 4 rats in the same 100 days because: Each cat works independently, and each cat is responsible for 1 rat. Hence, \[ \boxed{100 \text{ days}} \]