Question

Hal forgot the number of people at the basketball game.He does remember that the number had four digits and a 3 in the tens place. write a number that Hal could be thinking of.

Answer 1

There are a lot of numbers you can think of, for example, 1030, or even 9939, but I don't recommend you put that ;)

Answer 2

Number of People in the basketball game =A four digit number having 3 in the tens place.

Total number of digits in all={0,1,2,3,4,5,6,7,8,9}=10

So, Required Number,that is number of people at the basketball game which is a four digit number,also digits can repeat

=(0 can't be at Unit place ,so first digit that is number at thousands place can be selected in 9 ways)(Number at Hundred place can be selected in 10 ways )(3 in tens place)( Number at Unit place can be selected in 10 ways )

=9939(Maximum People)

Total number of four digit numbers , if these condition are given

=9×10×1×10

=900