A survey is conducted regarding the types of cardio equipment used by the 300 members of a fitness club.
134 members use rowers ( R ), 92 use treadmills ( T ), and 144 use spin-bikes ( S ).
23 members use rowers and treadmills only.
28 members use treadmills and spin-bikes only.
41 members use spin-bikes and rowers only.
60 members do not use any type of cardio equipment.
Display the information on a Venn diagram.
(1) Determine the number of fitness club members who:
- use all three types of cardio equipment
- use exactly two of the three types of cardio equipment.
(2) What percentage of the fitness club members use rowers, but do not use treadmills?