Giving brainliest for the right answer
2 answers:
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Answer:the pages will come on the first is 210
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,
2x=421 -1
2x=420
So, the pages will come on the first is 210