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TS EAMCET 18-July-2022 Shift 2 Solved Paper
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© examsnet.com
Question : 38
Total: 160
Two dice are thrown and the sum of the numbers appearing on the dice is observed to be a multiple of 4 . If
p
is the conditional probability that number 4 has appeared atleast once, then
3
p
+
2
=
25
12
1
6
7
3
5
2
Validate
Solution:
👈: Video Solution
n
(
s
)
=
36
E
=
Sum of numbers is a multiple of 4
F
=
4
has appeared at least once
E
=
{
(
1
,
3
)
,
(
2
,
2
)
,
(
3
,
1
)
,
(
2
,
6
)
,
(
3
,
5
)
,
(
4
,
4
)
,
(
5
,
3
)
,
(
6
,
2
)
,
(
6
,
6
)
}
P
(
E
)
=
9
36
F
=
{
(
1
,
4
)
,
(
2
,
4
)
,
(
3
,
4
)
,
(
4
,
1
)
,
(
4
,
2
)
,
(
4
,
3
)
,
(
4
,
4
)
,
(
4
,
5
)
,
(
4
,
6
)
,
(
5
,
4
)
,
(
6
,
4
)
}
P
(
F
)
=
11
36
∴
(
E
∩
F
)
=
{
(
4
,
4
)
}
,
P
(
E
∩
F
)
=
1
36
∴
p
=
P
(
F
E
)
=
P
(
F
∩
E
)
P
(
E
)
=
1
∕
36
9
∕
36
=
1
9
∴
3
p
+
2
=
3
×
1
9
+
2
=
7
3
© examsnet.com
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