Quantitative Aptitude Ques 2226

Question: If 10 spiders can catch 10 flies in 10 min, then how many flies can 200 spiders catch in 200 min?

Options:

A) 2000

B) 5000

C) 4000

D) 3000

Show Answer

Answer:

Correct Answer: A

Solution:

  • Let the required number of files be x. More spiders, More flies [direct proportion] More time, More flies [direct proportion] $ . \begin{aligned} & Spider10\text{:}200 \\ & Time10:200 \\ \end{aligned} }::10:x $ $ \because $ $ (10\times 10\times x)=(200\times 200\times 10) $

$ \therefore $ $ x=\frac{200\times 200\times 10}{10\times 10}=4000files $

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