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Byju's Answer
Standard XII
Mathematics
Conditional Probability
Find out the ...
Question
Find out the probability of getting 53 fridays and 53 saturdays in a leap year?
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Solution
Dear
Student
,
Total
number
of
days
in
a
leap
year
=
366
Now
,
366
days
=
52
weeks
+
2
days
So
,
there
are
7
possible
combinations
for
the
last
2
days
of
a
leap
year
:
1
.
Sunday
,
Monday
2
.
Monday
,
Tuesday
3
.
Tuesday
,
Wednesday
4
.
Wednesday
,
Thursday
5
.
Thursday
,
Friday
6
.
Friday
,
Saturday
7
.
Saturday
,
Sunday
Out
of
these
7
,
only
1
combination
gives
us
53
fridays
and
53
saturdays
.
Required
probability
=
1
7
Regards
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1
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