a,b,c are non negitive integers such that 28a+30b+31c=365, then a+b+c is?

• in a year there are 7 months of 31 days
  4 months of 30 days
  1 month of 28 days.
  as 365 so no leap year.
  so a + b + c = 7 + 4 + 1 = 12
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• ans is 12
  consider like mnths in a year
  a=1 b=5 c=6
  
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• 12......months in year
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• 1 year =365 days
  feb=28 days
  so a+b+c=12
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• a=2 ; b=1 ; c=5 hence a+b+c=8
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• 12
  (a)28---febmonth is 1
  (b)30-4 months
  (c)31-7 months-----Total 12
  
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• a=1
  b=4
  c=7
  no of months in a year
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• Ans is 12
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• Ans.12
  I agree with surit datta.
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