Assuming that the probability of boys and girls is equal (in reality slightly more boys than girls are born), the probability is 1/2, simply because the older girl's gender is given and therefore not a part of the probability.
This question comes from the 'boy or girl paradox', a.k.a. the Mrs Smith Problem.
Answer:
He strated at 5:19 PM
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Have a Nice Day!
Answer:
I believe its B.
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Answer:
ok
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yes