Let S be the sample space of all five digit numbers. If p is the probability that a randomly selected number from S, is a multiple of 7 but not divisible by 5, then 9p is equal to
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n(S) = all 5 digit nos = 9 x 10 4
A : no is multiple of 7 but not divisible by 5
Smallest 5 digit divisible by 7 is 10003
Largest 5 digit divisible by 7 is 99995
99995 = 10003 + (n - 1) 7 n = 12857
Numbers divisible by 35 99995 = 10010 + (P-l) 35 
P = 2572
Numbers divisible by 7 but not by 35 are
12857-2572=10285
9P= 1.0285
Ans. [1.0285]
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