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An ore trucks

Despot Ming Xiaoshuai2010-01-25 00:01:45 +0000 #1
a truck transported ore, sunny day, delivered 16 times, rainy days can only be delivered 11 times a day. Win 195 times, 13 times the daily average transport. Q. These days, some days it rains, days are sunny?
lancan62010-01-25 00:11:26 +0000 #2
set up rainy day for x days, sunny days for the y come to 11x +16 y = 195

also delivered a daily average of 13 times, availability shipped a total of 15 days, so, x + y = 15.

draw, x = 9, y = 6

Therefore, rain is 9 days, sunny days for 6 days
zcz12232010-01-25 00:51:39 +0000 #3
6

9 days sunny rainy Tian

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