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EAMCET Engineering 2007 Solved Paper
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© examsnet.com
Question : 120
Total: 160
Four numbers are chosen at random from
{
1
,
2
,
3
,
.
.
.
,
40
}
. The probability that they are not consecutive, is
1
2470
4
7969
2469
2470
7965
7969
Validate
Solution:
Probability that four of the numbers are consecutive
=
37
C
1
40
C
4
Now, probability that four of the numbers are
not consecutive
=
1
−
37
C
1
40
C
4
=
2469
2470
© examsnet.com
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