The sum of three from the four numbers A, B , C , D are 3957 , 4012 , 4370 and 4374 What is the largest of the numbers A , B , C and D?

a) 1614
b) 1200
c) 1560
d) 1198

• 3*(A+B+C+D)=3957+4012+4370+4374
  A+B+C+D=5571
  5571-(Least sum of 3 numbers)=Largest number
  5571-3957=1614
  so Largest number is 1614 (option a)
• 10 years agoHelpfull: Yes(75) No(1)
• Himanshu Samtani
  
  the numbers are A B C and D
  So, sum of three numbers from four numbers are : A+B+C, A+C+D, A+B+D and B+C+D
  Now adding up all of them: (A+B+C)+(A+C+D)+(A+B+D)+(B+C+D)=3957+4012+4370+4374-----(i)
  Which is subsequently equal to 3*(A+B+C+D)[since there are 3 A's 3B's and so on in eqn (i)]
  equating we get (A+B+C+D)=5571
  
  Now to find the greatest number, we just need to subtract the smallest sum of three numbers.
  For example, if a+b+c+d=10 and a+b+c=7, then a+b+c+d-(a+b+c)=d=10-7=3.
  Similarly, 5571-3957=1614(Ans)
  I hope this cleared your doubts
• 9 years agoHelpfull: Yes(6) No(0)
• plz clarify simply what is 3*(A+B+C+D) and why did u subtract least sum of 3 no.s and how it would be equal to largest no.
  : RAM
• 10 years agoHelpfull: Yes(4) No(1)
• unit digit of 3A+3B+3C+3D=3
  means unit digit of a+b+c+d=1
  then we need to subtract smallest no ie 3957(whose unit digit is 7)
  mean highest number unit digit is 4
  advantage is we need not calculate any thing .
• 10 years agoHelpfull: Yes(1) No(4)
• plz clarify simply what is 3*(A+B+C+D) and why did u subtract least sum of 3 no.s and how it would be equal to largest no.
  : RAM
• 10 years agoHelpfull: Yes(1) No(0)
• plz clarify simply what is 3*(A+B+C+D) and why did u subtract least sum of 3 no.s and how it would be equal to largest no.
  : RAM
• 10 years agoHelpfull: Yes(1) No(0)
• plz clarify simply what is 3*(A+B+C+D) and why did u subtract least sum of 3 no.s and how it would be equal to largest no.
  : RAM
• 10 years agoHelpfull: Yes(1) No(0)
• 3(A+B+C+D)=3957+4012+4470+4374
  A+B+C+D=5571
  Among the three sum , A+B+C is the lowest so D is the biggest number and its value is (5571-3957)=1614
• 9 years agoHelpfull: Yes(1) No(0)
• Somebody please clarify the question what is this mean The sum of 3 from the 4 numbers. And from what numbers. Largest will be D in that case 4374. Pathetic
• 9 years agoHelpfull: Yes(1) No(1)
• ans:- 1614
• 10 years agoHelpfull: Yes(0) No(7)
• Ans is opt A bcoz as explanation mentioned by ram is correct,by subtracting least no nly we get large no.
• 9 years agoHelpfull: Yes(0) No(0)
• 3(A+B+C+D)=16713
  A+B+C+D=5571
  A=1559
  B=1201
  C=1197
  D=1614
  Ans:-1614
• 8 years agoHelpfull: Yes(0) No(0)
• 3*(a+B+c+d)=(3957+4012+4370+4374)
  =5571-laregst number
  =5571-3957
  ans:1614
• 8 years agoHelpfull: Yes(0) No(0)