How many cats are required to catch 100 rats in 100 seconds?

Ten cats caught 10 rats in 10 seconds. How many cats are required to catch 100 rats in 100 seconds?
(a) 100
(b) 10
(c) 20
(d) 50

Anurag Mishra Professor Asked on 29th February 2016 in Maths.
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    Answer: (b) 10 

    Anurag Mishra Professor Answered on 4th March 2016.
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