Mr. fat needs 20 minutes to eat a pound of cereal, while mr. thin needs 30 minutes. if they eat together, how long does it take for them to finish off three pounds of cereal? express your answer in minutes.

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .