Question : Directions: If 4 cats can kill 4 rats in 4 minutes, how many minutes will it take 8 cats to kill 8 rats?
Option 1: 8
Option 2: 4
Option 3: 2
Option 4: 16
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Correct Answer: 4
Solution :
Given:
If 4 cats can kill 4 rats in 4 minutes.
Here, apply the formula of time and work to get the required answer –
(M
1
× T
1
)/R
1
= (M
2
× T
2
)/R
2
Here, M = Number of cats, T = Time, R = Number of rats
So, (4 × 4)/4 = (8 × T
2
)/8
⇒ 16/4 = (8 × T
2
)/8
⇒ (4 × 8)/8 = T
2
⇒ T
2
= 4
So, 8 cats kill 8 rats in 4 minutes. Hence, the second option is correct.
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