Latest TCS Aptitude Question SOLUTION: 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

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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

Asked In TCS purva (10 years ago)

Solved Ram Read Solution (13)

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Read Solution (13) :

Ram  (10 years ago) Best Solution

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)

Is this solution Helpfull? Yes (75) | No (1)  

Arijit Bhattacharya  (9 years ago)

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

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Himanshu Samtani  (10 years ago)

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

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awanish  (10 years ago)

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 .

Is this solution Helpfull? Yes (1) | No (4)  

Himanshu Samtani  (10 years ago)

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

Is this solution Helpfull? Yes (1) | No   

Himanshu Samtani  (10 years ago)

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

Is this solution Helpfull? Yes (1) | No   

Himanshu Samtani  (10 years ago)

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

Is this solution Helpfull? Yes (1) | No   

arpita ash  (9 years ago)

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

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Himanshu Samtani  (9 years ago)

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

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kapil  (10 years ago)

ans:- 1614

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sushma  (10 years ago)

Ans is opt A bcoz as explanation mentioned by ram is correct,by subtracting least no nly we get large no.

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nilesh gohil  (8 years ago)

3(A+B+C+D)=16713
A+B+C+D=5571
A=1559
B=1201
C=1197
D=1614
Ans:-1614

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MADHUBALA  (8 years ago)

3*(a+B+c+d)=(3957+4012+4370+4374)
=5571-laregst number
=5571-3957
ans:1614

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