Question

A company has 40 workers in its factory premises, 30 working in its office and 20 working in both places. i. How many workers are there in the firm? ii. How many are working exclusively in the office iii. How many are working exclusively in the Factory B. Given three sets P, Q and R such that: P = {x : x is a natural number between 10 and 16}, Q = {y : y is a even number between 8 and 20} and R = {7, 9, 11, 14, 18, 20} i. Find the difference of two sets P and Q ii. Find Q – R iii. Find R – P iv. Find Q – P

Answer 1

Answer:

90 worked are working in the firm

Step-by-step explanation:

For total no of workers, we have to add the total workers. i.e. 40+30+20=90

(1) 60.

This is because 20 workers are working in both factory premises and office. therefore

Worker in factory+ Workers in both=workers in factory

i.e. 40+20=60

(2) 30.

Answer 2

Answer:

it is very easy you can do it easily