Four friends went scuba diving. According to the following statements, who spotted sea life at the fastest rate?

Lance saw 4 reef sharks in 6 minutes.
Jasmine saw 6 sea cucumbers in 8 minutes.
Robert saw eleven jellyfish in fifteen minutes.
Shilpa saw 8 pencil urchins in ten minutes.

Question

Four friends went scuba diving. According to the following statements, who spotted sea life at the fastest rate?
 	
	Lance saw 4 reef sharks in 6 minutes.
	Jasmine saw 6 sea cucumbers in 8 minutes.
	Robert saw eleven jellyfish in fifteen minutes.
	Shilpa saw 8 pencil urchins in ten minutes.

unklerhaukus · Answer

each rate: is the number, per time unit

unklerhaukus · Answer

so, Lances rate is equal to   4[creatures]/6[minutes], 
(simplify this )

unklerhaukus · Answer

find the rates of the other divers the same way,
 and compare the rates, to find the fastest