Question

if 100 cats kills 100 mice in 100 days then 4 cats would kill how many days?

Answer 1

question sorry I can't get your question 100K will kill hundred miles in 100 day then forget we would kill how many days will not the days and the number of days on number of miles is not given ....

Answer 2

100
If over the space of 100 days,100 cats Kill 100 mice,the average each cat has killed if 100 cats kill 100 one mouse in that mice in 100days then period
So, an average in a 100 day period, 1cat Kill 1 mouse and 4 cats will kill 4 mice