Latest TCS Aptitude Question SOLUTION: 12 divides, ab313ab (in decimal notation, where a,b are digits>0, the smallest value of a+b is Options o 7 o 6 o 2 o 4

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(#M40011291) TCS Logical Reasoning question Keep an EYE

12 divides, ab313ab (in decimal notation, where a,b are digits>0, the smallest value of a+b is

Options
o 7
o 6
o 2
o 4

Asked In TCS Hari Priya Kazipeta (11 years ago)

Unsolved Read Solution (12)

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Read Solution (12) :

PRABHAKARAN  (11 years ago)

the ans is 7(a)
the number divisible by 12 should be divisible by 4&3
7 can be written as 5+2 a=5 b=2... so we get is "5231352" it is divisible by 12...

Is this solution Helpfull? Yes (33) | No (14)  

Srivastav Reddy  (11 years ago)

If a number is divisible by 12 then it should be divisible by 4&3
for divisible by 4 last [2 digit]no's should be divisible by 4
so last no's are 12,15,18,,,,,,and soon..
now least is 12 it,. 3 which is not the option,,
no other least is 16 it's sum 1+6=7..
so 7 is option :)

Is this solution Helpfull? Yes (33) | No (11)  

satyanarayana  (11 years ago)

ans:7 the no divisible by 12 it must divisible by 3 and 4 for 3 bivisible sum must be divisible by 3 and for 4 last 2 digitd divisible by 4 s0 a=5,b=2 52 divisible by 4 sum 21 divisible by 3 so a+b=7

Is this solution Helpfull? Yes (8) | No (5)  

Darshan  (9 years ago)

The answer is 4.
a + b = 4 .
let us take a=4 , b=0
then the number will be 4031340

4+0+3+1+3+4+0 = 15 divisible by 3 and the last two digits also divisible by 4 .

Is this solution Helpfull? Yes (3) | No (18)  

kamal preet  (11 years ago)

no should be divisible by 4 and 3. so
no.s are 12,24,..
1+2=3 is not the option so 2+4= 6 is the answer

Is this solution Helpfull? Yes (2) | No (14)  

venkatrao  (11 years ago)

the ans is 7(a)
the number divisible by 12 should be divisible by 4&3
7 can be written as 5+2 a=5 b=2... so we get is "5231352" it is divisible by 12
this is correct

Is this solution Helpfull? Yes (2) | No (2)  

gowthami  (8 years ago)

Ans is 4. Div by 12 means it should divisible by 3,4.we have 2 possibilities for last 2 values 4+0 and2+5 for div by 4 so 4+0 is ans

Is this solution Helpfull? Yes (2) | No   

charu singhania  (8 years ago)

the best approach is to go optionwise.. 2 will not satisfy as 7+2x will make 11 which is not divisible by 3. hence 4 is the correct option. moreover 4 can be written as a sum of at least one even number . so the last digit will be even.

Is this solution Helpfull? Yes (1) | No   

Nitish  (4 years ago)

guys 4 is wrong answer because 40 is only no that is devisible by 4 and whole no is also devisible by 3 so a =4 and b=0 but in question it is clearly mention that a,b>0 so ans is 7 and a should be 5 and b is 2.

Is this solution Helpfull? Yes (1) | No   

Harry Ramsub  (11 years ago)

How is 16 being cosideredin srivatsav's answer? Can someone pls explain?

Is this solution Helpfull? Yes | No (5)  

sasi  (7 years ago)

the answer will be 7 bcz 4,0 cannot be taken as a and b values bcz if a=0 the first place canot be placed with zero if so it becomes a 6 digit number so it conflicts

Is this solution Helpfull? Yes | No (1)  

sweety  (6 years ago)

hii everyone,
i have a small doubt in the given below question
IF B4B2B (IN DECIMAL NOTATION ,WHERE A,B ARE DIGITS > 0) IS DIVIDED BY 15 ,THEN THE SMALLEST VALUE OF B IS.
can any one explain for this question

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