Question

in a shopping mall 36 employees are wearing Tie and 25 employees are wearing caps if there are 55 employees in all find the number of employees who are wearing a tie as well as a cap if all the employees are wearing either a cap or tie

Answer 1

If 36 are wearing tie and 55 are wearing cap.
Then no. of people wearing both tie and cap is 36+25 - 55
=61-55
=6