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CAT 2004 | Question: 48

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$10^{10}$ < n < $10^{11}$

As the sum of the digits of n = 2, n can be any one out of

11000000000

10100000000

10010000000
.
.
.
10000000001 … (10 such numbers)

or n can be 20000000000

There are 11 such values of n.

 

Hence,Option(1)11 is the correct choice.

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