Final answer:
To find the portion of employees with cellular phones, divide the number of employees with phones (20) by the total employees (50) to get 0.40, and multiply by 100 to convert to a percentage, giving a result of 40%.
Step-by-step explanation:
The question is asking to calculate the portion of employees with cellular phones in an office of 50 employees, where 20 of them have cellular phones. To find this portion, you divide the number of employees with cellular phones by the total number of employees and then convert the fraction to a percentage.
The calculation would be as follows:
(Number of employees with cellular phones) ÷ (Total number of employees) = Portion of employees with cellular phones
20 ÷ 50 = 0.40
To convert this to a percentage, you multiply by 100:
0.40 × 100 = 40%
So, the correct answer is b) 40%.