Latest TCS Aptitude Question SOLUTION: n the series, only one number is wrong. Find out the wrong number. 518, 1030, 1130, 2858, 3054, 7160, 7474

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(#M40039399) TCS Numerical Ability question Keep an EYE

n the series, only one number is wrong. Find out the wrong number.

518, 1030, 1130, 2858, 3054, 7160, 7474

Asked In TCS hemraj (9 years ago)

Unsolved Read Solution (13)

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Read Solution (13) :

Nandkishor  (9 years ago)

first of I say that above it is given it is a series so 3054 is not correct.
then solution is:-
difference bet first two term=1030-518=512=8^3.
then 1130-1030=100=10^2
then 2858-1130=1728=12^3
then 3054-2858=196=14^2
BUT 7160-2054=4106!=16^3(4096)
then if 7474-4096=324=18^2
So answer is 7160.

Is this solution Helpfull? Yes (25) | No (1)  

anjali  (9 years ago)

only 3054 is completely divisible by 3.
that's why ans: is 3054.

Is this solution Helpfull? Yes (9) | No (3)  

B.Ashok  (9 years ago)

3054
ans......

Is this solution Helpfull? Yes (6) | No (2)  

abhinav  (9 years ago)

first we substract two consecutive numbers.... the diff is...
512 100 1728 196 4106 314
which is .
(8^3) (10^2) (12^3) (14^2) and the next two are not right in this series
so wrong is 7160...

Is this solution Helpfull? Yes (3) | No (2)  

mahesh  (9 years ago)

ALL THE GIVEN NOS ARE NOT DIVISIBLE 3 EXCEPT 3054.
SO ANSWER IS 3054

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

ashutosh  (9 years ago)

correct ans. is 7160.

Is this solution Helpfull? Yes (2) | No   

sandipan  (9 years ago)

all r 4 digit except518

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

Saurabh Kumar  (9 years ago)

@karthikeyan........ wt abt 1130????

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

PRIYANKA GUHA   (9 years ago)

Ans is 7160
becoz it is divisible by 4 bt others r nt.so its a odd man out no.

Is this solution Helpfull? Yes (1) | No   

Dhanalakshmi  (9 years ago)

2858
since the digital sum of all number is in 3 or 4 or5 except 2858

Is this solution Helpfull? Yes | No (1)  

anusha  (9 years ago)

sum of digits of all the numbers are 14,4,5,23,12,14,22 respectively.all the sums are not prime except 5 .so the number 1130 hose sum is 5 is odd one

Is this solution Helpfull? Yes | No (3)  

karthikeyan  (9 years ago)

sum of the digit all number is not prime number 2858 is prim number

Is this solution Helpfull? Yes | No   

B.Ashok  (9 years ago)

all given numbers are divisible of 3 but
expect 2858 so 2858 wrong number

Is this solution Helpfull? Yes | No (1)  

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