Question

A book containing 100 pages is opned at random.Find the probability that a doublet page is found

Answer 1

probability of doublet page is found is 9/100

Answer 2

$total \: number \: of \: possible \: outcome \\ =100</p><p> \\ the \: favourable \: outcome (doublet)</p><p> \\ = 11,22,33,44,55,66,77,88,99</p><p></p><p> \\ \\ P (doublet) = \frac{9}{100} </p><p></p><p>$