Help Distress (HD) is an NGO involved in providing assistance to people suffering from natural disasters. Currently, it has 37 volunteers. They are involved in three projects: Tsunami Relief (TR) in Tamil Nadu, FloodRelief (FR) in Maharashtra, and Earthquake Relief (ER) in Gujarat. Each volunteer working with Help Distress has to be involved in at least one relief work project.
Common Information Question: 2/4
Which of the following additional information would enable to find the exact number of volunteers involved in various projects?
Twenty volunteers are involved in FR.
Four volunteers are involved in all the three projects.
Twenty three volunteers are involved in exactly one project.
No need for any additional information.
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