Question

Find the number of odd pages in a book of 1089 pages

Answer 1

Answer:

Hi Friend !!!

Here is ur answer !!!

no. of odd pages = 1,3,5,7,9 .......1089

They are in AP

a = 1

d = 3-1 = 2

n = ?

an = 1089

an = a+(n-1)d

1089 = 1+(n-1)2

1089 = 1+2n-2

1089 = 2n-1

2n = 1089+1

n = 1090/2

n = 545

Hope it helps u  :)

Answer 2

total number of odd and even pages in 1088 is each 544
therefore number of odd pages in 1089 =544+1
=545