Quantitative Aptitude Ques 1889

Question: The number of digits are required to number a book containing 200 pages?

Options:

A) 200

B) 600

C) 492

D) 372

Show Answer

Answer:

Correct Answer: C

Solution:

  • Number of one digit pages from 1 to 9 = 9 Number of two digit pages from 10 to 99 = 90 Number of three digit page from 100 to 200 = 101

$ \therefore $ Total number of required page $ =9\times 1+90\times 2+101\times 3=492 $

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