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Q.

The greatest 4 digit number which can be made using the digits 6, 0, 1 where only one digit can be repeated twice is:


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a

6601

b

6610

c

6600

d

6061 

answer is B.

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Detailed Solution

Concept- We arrange the given numbers in descending order and find the greatest four digit number and thus use the largest number twice in the number formation which results in the greatest number formation
Given numbers are 6, 0, 1 out of which 6 is the largest.
Thus 6 comes in the first place (thousands) and as it is the largest number it is repeated twice.
Then in 0, 1 we have 1 is the largest number and placed at third (tens) place and at last 0 is placed.
Hence, the correct option is 2.
 .Exam type: CBSE
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