If a, b ,c are + ve integers and 28a +30b + 31c= 365 then a+ b+ c=
a 12
b <= 11
c >13
d 13

• this question is related to months of a year.
  there is 1 month that is february with 28 days, 7 months with 31 days and 4 months with 30 days.
  therefore answer is 1+7+4=12. Equal to 12 months in a year.
  So, 28(1)+30(4)+31(7)= 365 days.
• 9 years agoHelpfull: Yes(17) No(0)
• answer is 12
  soln: take months a=1,b=4,c=7
  1+4+7=12
• 9 years agoHelpfull: Yes(2) No(0)
• Ans:(a)12
  28 days=feb=1
  31 days=jan,mar,may,july,aug,oct,dec=7
  30days=april,june,sep,nov=4
• 9 years agoHelpfull: Yes(1) No(0)
• 12 is the answer
  as a+b+c can be the total number of months in a year
• 9 years agoHelpfull: Yes(0) No(0)
• only feb-- 28 day-- means. a=1
  jan ,march , may ,jul ,aug, oct ,dec are -- =31 day.means - c=7
  
  apr, jun ,sept ,nov are ==30 days...means b= 4
  
  
• 9 years agoHelpfull: Yes(0) No(0)
• answer a because their are 1 month witch has 28 days and remaining 11 has 30 and 31
• 9 years agoHelpfull: Yes(0) No(1)
• ans:12
  cosider the days of the month
  28= feb=1
  30=april,june,sep,nov=4
  31=jan,mar,may,july,aug,oct,dec=7
  totally=1+4+7=12
  
  
  
  
• 9 years agoHelpfull: Yes(0) No(0)