At $4.47 per hour, what is the least amount of full hours needed to work to earn at least $240?
1 answer:
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Answer:
The correct option is B) 26x26x10^4.
Step-by-step explanation:
Consider the provided information.
It is given that the Wisconsin consist of 2 letter and 4 digits. And two letters always precede the digits.
There are 26 Alphabet so that means for alphabets we have 26 choices also we for digits we have 10 choices (0 to 9).
However, only digits can repeat. For first letter we have 26 choices for second we have only 25 choices left, similarly for digits we have 10 choices but repetition is allow so we can choose same number. the number of possible plates are:
26×25×10×10×10×10
Which also can be written as:
Hence, the correct option is B) 26x26x10^4.
Answer:
(a) 720 ways
(b) 120 ways
(c) 24 ways
Step-by-step explanation:
Given
--- number of letters
Solving (a): Number of arrangements.
We have:
So, the number of arrangements is calculated as:
This gives:
This gives:
Solving (b): DA as a unit
DA as a unit implies that, we have:
[DA] N C E R
So, we have:
So, the number of arrangements is calculated as:
This gives:
This gives:
Solving (c): NCE as a unit
NCE as a unit implies that, we have:
D A [NCE] R
So, we have:
So, the number of arrangements is calculated as:
This gives:
This gives: