Latest TCS Aptitude Question SOLUTION: Complete the sequence 9,10,11,13,15, __, 21,28.

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(#M40009392) TCS General Ability question Complete the seires Keep an EYE

Complete the sequence 9,10,11,13,15, __, 21,28.

Asked In TCS Vignesh (12 years ago)

Solved Pargat Pal Singh Read Solution (8)

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Pargat Pal Singh  (12 years ago)

19

9,10,11,13,15, __, 21,28.
9,10,11,13,15, 19, 21,28.

there are 2 series.
9,11,15,21 ... with difference in numbers 2,4,6,8 and 10,13,19,28.. with diff in numbers 3,6,9

Is this solution Helpfull? Yes (23) | No   

priya gupta  (11 years ago)

19
first series 9(+2)11(+4)15(+6)21
second series 10(+3)13(+6)"19"(+9)28 :)

Is this solution Helpfull? Yes (3) | No (1)  

naveen  (12 years ago)

9+2=11
10+3=13
11+4=15
therefore 13+5=18 is the answer

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

padma  (12 years ago)

ans is 18
9+1=10
10+1=11
11+2=13
13+2=15
15+3=18
18+3=21

Is this solution Helpfull? Yes (1) | No (6)  

shelly  (12 years ago)

35,42
series is fibonacci.....

Is this solution Helpfull? Yes | No (5)  

shilpa verma  (12 years ago)

18
seq.1 1 2 2 3 3

Is this solution Helpfull? Yes | No (4)  

Muthukumar.K  (12 years ago)

9,10,11,13,15, __, 21,28

d difference of 9 nd 10 is 1 ..
" " " 10 nd 11 is 1 ..
" " " 11 nd 13 is 2 ..
" " " 13 nd 15 is 2 ..
" " " 15 nd _ is ..?

so here v add 3 d ans is 18 .....

" " " 18 nd 21 is 3 .. BY - MK -

Is this solution Helpfull? Yes | No (3)  

surbhi dubey  (9 years ago)

ans is 18 bcz there is differnce between no.s is 1 1 2 2 3 3.......n so on

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