Question 425874
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a lion devours a sheep in 4 hours. a leopard devours a sheep in 5 hours. a bear devours a sheep in 6 hours. 
how long will it take the three animals eating simultaneously to consume a single sheep?
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        Calculations in the post by @mananth are incorrect/(inadequate to given data).

        I came to bring a correct solution.



<pre>
Individual rates are 1/4, 1/5 and 1/6 for the lion, the leopard and the bear, respectively.


Hence, the combined rate is  the sum

    {{{1/4}}} + {{{1/5}}} + {{{1/6}}} = {{{15/60}}} + {{{12/60}}} + {{{10/60}}} = {{{37/60}}}.


It means that the three animals will consume a single sheep in  {{{60/37}}}  hours,  

or, approximately, in 1 hour and 38 minutes (rounded up).
</pre>

Solved correctly.