Mr 'X' has three children. The birthday of the 4
first child falls on the 5th Monday of April,
that of the second one falls on the
5th Thursday of November. On which day is
the birthday of his third child, which falls on
20th December?
(a) Monday
(b) Thursday
Answers
the birthday of his third child is on 3rd ThursDay
Step-by-step explanation:
5th Monday of April,
=> 29th April or 30th April
Two possible cases
29th April is Monday ( Birthday) or 30th April is Monday ( Birthday)
Case 1 :
if 29th April is Monday then 29th November is Friday & 30th November is Saturday
5th Thuursday can not fall in Novemebr
Case 2
if 30th April is Monday then 29th November is Thursday
5th Thursday - Birthday of second child
29th November is Thursday
=> 20th December would be : Thursday
the birthday of his third child is on 3rd Thursday
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