Answer: 6760000
Step-by-step explanation:
Given : A license plate is designed so that the first two characters are letters and the last four characters are digits (0 through 9).
We know that ,
Number of choice for letters : 26
Number of choices for numbers : 10
Now, the number of different license plates can be formed is repetition of letters is allowed :-
∴The number of different license plates that can be formed is 6760000 .
Answer: 11 is the required number that always divides such differences for the following types of numbers.
Step-by-step explanation:
Take any 3 - digit number, say, 325
On reversing its digit it becomes, 523
On subtracting the smaller of the two numbers from the larger,
we can see that 198 is an even number.
take another number say, 629
On reversing its digit, it becomes = 926
On subtracting , we get that
But 297 is not an even number.
But there is one common in both the cases is that both the differences are divisible by 11.
Hence, 11 is the required number that always divides such differences for the following types of numbers.