Question

Two pages that face each other in a book have 421 as the sum of their page numbers. What is the number of the page that comes first?

Answer 1

Answer:the pages will come on the first is 210

Step-by-step explanation:

Since we have given that two pages that face each other in a book

i.e. they must be consecutive to each other

so, let the first page number be x

and the second page number be x+1

According to question,

`x+x+1=421\\2x+1=421`

2x=421 -1

2x=420

`x=(420)/(2)\\=210`

So, the pages will come on the first is 210