Question

How many four digit numbered license plates can be
made such that NO two plates are identical?
Select one:
a. 10P 4-1
b. 104
c. 104-1
d. 10P 4
Pls help

Answer 1

Step-by-step explanation:

Given:How many four digit numbered license plates can be made such that NO two plates are identical?

To find:Select one:

a. 10P 4-1

b. 10⁴

c. 10⁴-1

d. 10P 4

Solution:

We have 10 digits, 0,1,2,3..., 9

Out of which have to take four digits at a time,repetition is allowed(As we can see on vehicles),

So,

n=10

r=4

No.of plates to be formed

${n}^{r}$

So,

Total number plates to be made

$( {10)}^{4}$

Option 2 is correct.

Note*:A number plate starting from 0 is also considered as 4 digit.

for eg:HR 36A 0208 is a valid number plate.

Hope it helps you.

To learn more on brainly:

1)how many 3 digit numbers can be formed from the digits 2 3 5 8 9 without repetition which are exactly divisible by 4

https://brainly.in/question/21389212

2)How many 5 digit numbers formed using the digits 0,1,2,3,4,5 divisible by 5 if digits are not repeated

Please give expl...

https://brainly.in/question/14412506

Answer 2

Answer:

Option 2 is correct.............