A cellphone company has 100 employees, 615 are male, 682 are single, and 345 are union members, 485 are single male and 187 are single and union members, 120 employees are single male and union members. Using venn diagram, determine the number of employees who are:
a. male
b. single
c. union members
d. male and union members e. single union members
f. neither male no single and not union member​