If 4 cats kill 4 rats in 4 minutes, how many minutes will it take 8 cats to kill 8 rats?

Question

Question

This question was previously asked in

Territorial Army Official Paper I (Conducted on 26 Sep 2021)

Answer 1

Formula used:

(x1 × y1) / z1 = (x2 × y2) / z2

Here, x = cats

y = minutes

z = rats

Calculations:

Put all values in the formula,

⇒ (4 × 4) / 4 = (8 × y2) / 8

⇒ y2 = 4

Thus, '4' minutes will take 8 cats to kill 8 rats.

Hence, the correct answer is "4".