Book Maths Puzzle Numerical Ability Time Distance and Speed

A has forgotten the phone no. of his friend B. all he remembers is that the number has 8 digits,ended with an odd number and has exactly one 9. how many possible numbers does he have to try to make sure he has got the right number?

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Book Other Question

a dice is rolled 6 times. 1,2,3,4,5 and 6 appears on consecutive throws of dice. how many ways are possible of having 1 before 6 ? how many ways of different necklace is formed from 5 green and 6 red beats?
a)18
b) 21
c)42
d)36