Q no 24 ans is a.

How to solve this?

For the first question:

For the first 9 pages, the printer will print 9 digits

From next page onwards it will print 2 digits

Let the number of pages with 2 digit page number be x

Then, 9 + 2x = 189

2x = 180, x = 90

Total number of pages = 9 +90 = 99

99 < 100

Ans B

For the second question:

I don’t think you have shared the entire data here

There is an answer key in my big book on pg 727

Either share the entire data or test number and section