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Given: A pizza shop sells only two types of pizza: Margarita and Pepperoni. On a particular day, the shop sold 70 Margaritas and 100 Pepperonis.

Asked: If it is known that none of the customers purchased more than one pizza of a particular type, and each customer purchased at least one pizza, then select for Minimum number of customers the least possible customers the shop could have received and for Maximum number of customers the maximum possible customers the shop could have received. Make only two selections, one for each.[/quote]

Minimum number of customers: -
Customers ordering 1 Margarita & 1 Pepperonis Pizzas = 70
Customers ordering 1 Pepperonis Pizza = 100 - 70 = 30
Minimum number of customers = 70 + 30 = 100

Maximum number of customers: -
Customers ordering 1 Margarita Pizza = 70
Customers ordering 1 Pepperonis Pizza = 100
Maximum number of customers = 70 + 100 = 170
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A pizza shop sells only two types of pizza: Margarita and Pepperoni. On a particular day, the shop sold 70 Margaritas and 100 Pepperonis.

To Find minimum Number of Customers:
Let 70 People Purchase Margarita and Pepperoni and 30 People Purchase remaining Margaritas.
Alternatively out of 100 People who purchase Pepperonis, 70 also purchase Margarita.

To find Maximum Number of Customers:
70 People purchase only Margaritas
100 People purchase only Pepperonis.

IMO Minimum Customers 100, Maximum Customers 170.
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When all the customers buying 'M' pizza also buys 'P' pizzas, then we have customers who buy both type of pizzas=70, and the remaining pizzas will be bought individually by each customer.
Therefore min no. of customers = 100.

When none pf the customers buying 'M' pizza also buys 'P' pizzas, then we have customers who buy only 'M'=70 and only 'P'=100.
Therefore max no. of customers = 170.
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A pizza shop sells only two types of pizza: Margarita and Pepperoni. On a particular day, the shop sold 70 Margaritas and 100 Pepperonis.

If it is known that none of the customers purchased more than one pizza of a particular type, and each customer purchased at least one pizza, then select for Minimum number of customers the least possible customers the shop could have received and for Maximum number of customers the maximum possible customers the shop could have received. Make only two selections, one for each.


Keeping in mind the restrictions, Minimum number of customers = (maximum customers buying both pizza) 70 margarita and Pepperoni remaining 30 Pepperoni other 30 customers i.e total 100 customers
Keeping in mind the restrictions, Maximum number of customers = (maximum different customers buying different pizzas) 70 margarita and 100 Pepperoni all pizzas by different customers i.e total 170 customers
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Here is how I went about the problem:

We know there are 70 margherita and 100 pepperoni pizzas, and all customers purchased at least one pizza.

This means the max number of customers is 170, because if each customer purchased at least 1 then we could have 1 pizza per customer, and there were 170 pizzas total.

The minimum is a little trickier and the wording here almost got me tripped up. It says no customer got more than 1 pizza of a particular type, meaning no one purchased more than 1 margherita or pepperoni, but could have purchased 1 one of each, or a max of 2 pizzas. So the minimum scenario is the scenario where each customer purchases a margherita and a pepperoni until the margheritas run out, then the remaining customers each purchase a single pepperoni pizza.

So, we have 70 customers buy one margherita and one pepperoni each, leaving us with 30 leftover pepperonis

Each remaining customer buys a single pepperoni (30 customers)

So we get 30 + 70 = 100 customer minimum
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