Carl has 200 songs on mp3 24 songs are country what is the percentage of his country songs

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Which one ? is the answer and how to find this answer

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu