The largest 5-digit number having three different digits isa)98978b)99...
Step1: Identify the digits
We have to form largest 5-digit number using three different digits. So we will use largest numbers 9,8, and 7
To form a 5-digit number, we have to use one or two digits more than once.
Step 2: Arrange the digits in descending order
We will use digit 9 three times, as it is the largest of the digits.
We will write the remaining two digits in descending order to form the largest number.
So, largest 5-digit number formed with three different digits 9,8,7 is 99987
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The largest 5-digit number having three different digits isa)98978b)99...
Explanation:
To find the largest 5-digit number having three different digits, we need to consider the digits in descending order.
Step 1: The first digit should be the largest possible digit, which is 9.
Step 2: The second digit should be the next largest digit, which is 8.
Step 3: The third digit should be the smallest digit, which is 7.
Step 4: The fourth and fifth digits can be any of the three digits used above.
Therefore, the largest 5-digit number having three different digits is 99987.
Answer: Option C
The largest 5-digit number having three different digits isa)98978b)99...
The largest 5-digit having three different digits is 99987 because it represents the number 90000+9000+900+80+7