SSC CGL 2018 PYQ — Question 2

SSC CGL Tier II Quant - 17/02/2018 • Quantitative Aptitude • Q2

How many 100 digit positive number are there ?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 ie 9 × 1099.

Digits               Positive numbers

   1                       9 = 9 × 100

   2                       90 = 9 × 101

   3                       900 = 9 × 102

   . 

   .

 100                       = 9 × 1099