Set a rainy day for x days.

8x+ 12(5-x)=52

8x+60- 12x=52

12x-8x=60-52

4x=8

x=2

Arithmetic method:

12000x5 = 60000m

60000-52000 = 8000m

Rainy days: 8000( 12000-8000)= 2 days.

Sunny days: 5-2=3 days

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