How many odd number pages are there in 1089 pages book?
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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 : )
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 : )
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