If 7 cats kill 7 rats in 7 min how many would be needed to kill 100 rats in 50 min
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In this question direct variation can be used to solve the question
First case
No. of cats to kill rats=7
Time taken by cats to kill rats=7min
No. of rats killed=7
Second case
No. of cats to kill rats=?
Time taken by cats to kill rats =50min
No. of rats killed=100
So, so if we try to balance it we will get that 200 cats are needed
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