Question

Last year, the largest number of pizzas ordered in a month was the largest four-digit number while the smallest number of pizzas ordered in a month was the largest three-digit number. The difference between the largest and the smallest order is

• A. 9000
• B. 10998
• C. 999
• D. 1098

Answer 1

The correct option is A 9000

As we know,
Largest four-digit number = 9999
Largest three-digit number = 999
Given ,
$\Rightarrow$ Largest number of pizza ordered = Largest four-digit number = 9999
$\Rightarrow$Smallest number of pizza ordered = Largest three-digit number = 999

Let the difference be x.

The difference between largest and smallest order + Smallest number of pizza ordered = Largest number of pizza ordered
$\Rightarrow x+999=9999$
Subtract 999 from both side,
$\Rightarrow x+999-999=9999-999$$\Rightarrow x=9000$
The difference between largest and smallest order is 9000.