Question 889738
d=9
d--1-2-3-4-5-6-7-8-9-10-11
am-c-r-c-r-c-r-c-c-c------
pm-r-c-r-c-r-c-r-c-c------ 


((5+6)+7)/2=18/2=9
add partial clear  5+6=11 and 7 rainy days for a total of 18 ms and pms
divide 18/2 to get 9 days