Part I (Answer one Item from this part)
SECTION B.
Part I : Item 3
James has been sent to a certain region to find out whether it’s necessary to set up a new office for processing National Identity Cards, Driving permits and passports. If the probability of a person having only one document is less than 50%. James randomly interviewed 75 people in that region.
He found that 18 people did not have any of the three documents, 30 people had driving permits and 20 people had passports. The number of people who had both National Identity cards and Driving permits only, was twice those who had passports and Driving permits but no National Identity Cards. 4 people had passports only. 3 people had all the three documents and 12 people had Driving permits only. James has to report about the number of people who have National Identity cards but he has some missing information.
Task:
- a) Help James to find the total number of people with National Identity Cards.
- b) Determine if there is need for a new office in the region. Give a reason for your answer.
