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Q.

Choose the correct option.
How many 3-digit numbers are there?

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a

899

b

999

c

900

d

800

answer is B.

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Detailed Solution

The smallest 3-digit number is 100. The greatest 3-digit number is 999.

The number of natural numbers between 'a' and 'b' is 'b-a+1'

The number of 3-digit numbers between 100 and 999 is 999-100+1=900

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