The total number of digits used in numbering the pages of a book having 360 pages is

Answer/Solution

972

Steps/Work

Total number of digits
= (No. of digits in 1- digit page nos. + No. of digits in 2-digit page nos. + No. of digits in 3- digit page nos.)
= (1 x 9 + 2 x 90 + 3 x 261) = (9 + 180 + 783) = 972.
ANSWER:A

General Calculator / Auto Solver

The total number of digits used in numbering the pages of a book having pages is

Calculated Answer

972

Step by Step Solution

In order to solve problem, you must evaluate n₀ * 3 - (100 - 1) - (10 - 1).

n₀ =	360

n₀ * 3 - (100 - 1) - (10 - 1)
Evaluate n₀ * 3 = 1080
1080 - (100 - 1) - (10 - 1)
Evaluate 100 - 1 = 99
1080 - 99 - (10 - 1)
Evaluate 1080 - 99 = 981
981 - (10 - 1)
Evaluate 10 - 1 = 9
981 - 9
Evaluate 981 - 9 = 972
972
The answer to the problem and the result of n₀ * 3 - (100 - 1) - (10 - 1) is 972

Quiz

Answer/Solution

Steps/Work

General Calculator / Auto Solver

Calculated Answer

Step by Step Solution