Question 865876
If the first group were changed to just 1 dog, then this one dog would need 5*5 minutes to consume the 5 bones.  This is 5 bones in 25 minutes; or, 1 bone in 5 minutes, or {{{1/5}}} BONES per MINUTE, the one-dog rate.


Two dogs together can consume at the rate of {{{1/5+1/5=2/5}}} bones per minute.


The uniform work rate equation for these two dogs is {{{highlight((2/5)*t=3)}}}, the situation being for consuming three bones.  Solve for time t.




{{{7&1/2}}} minutes