aashu4uiit wrote:

What is the probability that it will rain tomorrow?

(1) The probability that it rains today is 40%.

(2) If it rains today, the probability that it will rain tomorrow will increase by 10%.

(1) The probability that it rains today is 40%.

Probability of rain today = \(\frac{40}{100}= \frac{2}{5}\) ; No rain today \(= \frac{3}{5}\)

NO INFORMATION ABOUT TOMORROW

INSUFFICIENT

(2) If it rains today, the probability that it will rain tomorrow will increase by 10%.

Probability of rain today = x ; Probability of rain tomorrow = x+10%

No information on today's chances of rain

INSUFFICIENT

MERGE BOTH

Probability that it rains today = \(\frac{2}{5}\)

If Rain today then Tomorrow's Rain probability = \(\frac{2}{5}+\)10% \(of \frac{2}{5}\)

If No rain today then Tomorrow's Rain probability = ??????? NO INFORMATION GIVEN

Can we calculate it NO WE CANNOT ; Today no rain = 3/5 thats all we know. How this corelates to tomorrow is not given anywhere in the question

INSUFFICIENT

ANSWER IS E

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