Latest CAT Aptitude Question SOLUTION: It rains 3 days a week. When it rains there is Thunderstorm. The probability of Thunderstorm falling on the ground is 1/42000. A Golfer plays golf on Saturday and Sunday. What is t

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(#M40017978) CAT question puzzle Keep an EYE

It rains 3 days a week. When it rains there is Thunderstorm.
The probability of Thunderstorm falling on the ground is 1/42000.
A Golfer plays golf on Saturday and Sunday. What is the probability of Thunderstorm falling on that Golfer?

Asked In CAT sushmita (11 years ago)

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SATISH VARADA  (11 years ago)

1/49000
prob of rain in one day 3/7
prob of thunder falling on ground (3/7)*(1/42000)
golfer plays 2 days a week.
so, 2*(3/7)*(1/42000)
ans:1/49000

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Preethi  (10 years ago)

Total possibiliteis of days on which rain occurs = 7C3
Total possiblities containing Sunday or Saturday as one of the days = 7C3-5C3
Probiabiltiy that the thunderstorm occurs on the Sundays and Saturdays = (7C3-5C3)/7C3
Probablitlity tha thuder storms occur on that day =
(7C3-5C3)/7C3 * 1/42000= 25/35*1/42000 = 5/294000

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