Question

How many digits are required for
numbering the pages of a book having 300pages?
(A) 299
(B) 492
(C) 789
(D) 792​

Answer 1

Answer:

1. ggjjodgdgjxgdthhssfhjhxdddddsssd

Answer 2

Given,

A book having 300 pages

To find,

The number of digits required

Solution,

Number of one-digit numbers = 9

So for a one-digit number, the number of digits needed = 1 x 9

= 9

Number of two-digit numbers = 90

So for every two-digit number, the number of digits needed = 90 x 2

= 180

Number of three-digit numbers = 201

So for a three-digit number, the number of digits needed = 3 x 201

= 603

Total number of digits needed = sum of all digits

= 603 + 180 + 9

= 792

Thus, the number of digits needed is (D) 792