In a survey of 200 families, the number that read recent issues of a certain monthly
Journal were found to be - March only 36,
March but not April 46; March and
16 March Sai May 96: May and April
16. none of the 3 months 48. By means
of Venn diagram
or otherwise determine
is the number of families that read April issue
2) the number of families that read two
Consecutive issues?
3) the number of families that read the May
issue, if and only if they did not read
April issue?
4)the number of families that read March
and April issues but not the May issue​

Naruto is choosing between two venues that will deliver food to his house. with probability 1/3 he will choose ramen mania (r), and with probability 2/3 he will choose sushi (s). if he chooses r, 15 minutes after making the call, the remaining time it takes the food to arrive is exponentially distributed with average 10 minutes. if he orders s, 10 minutes after making the call, the time it takes the food to arrive is exponentially distributed with an average of 12 minutes. given that he has already waited 25 minutes after calling, and the food has not arrived, what is the probability that he ordered from r? i am really stuck on how to set this up, so if you could be extra clear, that would be super ! in advance