Latest TCS Aptitude Question SOLUTION: 5,9,12,18,36,47,72.?

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(#M40029063) TCS question Keep an EYE

5,9,12,18,36,47,72.?

Asked In TCS (11 years ago)

Unsolved Read Solution (7)

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AVIJIT  (11 years ago)

question is wrng,data missng
the qtn is 5, 9, 12, 18, 26, 36, 47, 72, _?
then
Ans:75
Here In odd places, multiples of 7 are added i.e 5,5+7(=12),12+14(=26),26+21(=47),47+28(=75).
Similarly for even numbers i.e multiples of 9 are added.

Is this solution Helpfull? Yes (25) | No (4)  

Anil Kumar  (11 years ago)

5, 9, 12, 18, 26, 36, 47, 72, _?
it is 5 ...... 12....... 26......... 47
12= 5+7
26= 12+2×7
47=26+3×7
Next is 47+4×7=75
and 9, 18, 36, 72 hence next 144
Therefore 5, 9, 12, 18, 26, 36, 47, 72, 75, 144

Is this solution Helpfull? Yes (6) | No   

KD  (11 years ago)

In case of even place how multiples of 9 are adding?
9+9*1=18
18+9*2=36
36+9*3=63(but in series it 72 )

Is this solution Helpfull? Yes (2) | No   

Aditya Kushwaha  (11 years ago)

5, 9, 12, 18, 26, 36, 47, 72, _?
firstly considering corresponding series term 5 ...... 12....... 26......... 47
having logical arrangement as follows;
12= 5+7
26= 12+2×7
47=26+3×7
Next is 47+4×7=75
and for the dropped series elements,they follows previous term*2 =final one so 9, 18, 36, 72 hence next 144
Therefore 5, 9, 12, 18, 26, 36, 47, 72, 75, 144

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

Rohit Singh  (11 years ago)

there is one term missing in the given series...i.e 26 aftr 18 .....
ans will be 75..
in odd places, multiple of 7 are added.
12= 5+7
26= 12+2×7
47=26+3×7
Next is 47+4×7=75

Is this solution Helpfull? Yes (2) | No   

bipin mkumar  (11 years ago)

series must be such like 5,9,12,18,26,36,47,72,75.....but in this series 26 missed, so question is wrong, but all solution r correct

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Guru Pranav  (11 years ago)

new series will be 5,9,12,18,36,47,72,75,144

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