A department store has 100 customers per day. There are four types of customers:

Question

A department store has 100 customers per day. There are four types of customers:
Type 1 - Browse but don't buy
Type 2 - Needs help and makes a purchase
Type 3 - Needs help but don't buy
Type 4 - Buys without help

20%, 10%, 5%, and 65% of customers are Types 1, 2, 3, and 4, respectively.

The store employees one greeter (who greets every customer), two assistants (who deal with customers who need help), and two cashiers (who serve customers who purchase something.

What is the total demand rate at the cashier per day?

Explanation / Answer

Total % of customers who buy goods = 10% + 65% = 75%

Only the people who buy the goods, approach cashier and the cashier serves these buyers.

So, demand rate per day for the cashiers = 75% or 75 (out of 100 customers)

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