Latest TCS Aptitude Question SOLUTION: solve the series 3 12 7 26 15 -?

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(#M40003757) TCS question TCS LATEST QUESTION Keep an EYE

solve the series 3 12 7 26 15 -?

Asked In TCS (12 years ago)

Unsolved Read Solution (5)

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Vinay  (12 years ago)

ans
wil be54

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Achintya Dutta  (12 years ago)

consider two series.one series is:3 7 15.another one is:12 26.
in 1st series:7-3=4 and 15-7=8.
in 2nd series:26-12=14 and 54-26=28.
so the ans will be 54.

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santhosh  (12 years ago)

the series is like
3,12,3*2+1,12*2,+2,15,15*2+3
so 15*2+3=33

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mohammed awais  (12 years ago)

ans is 54
there r two series
3 7 15
which is
3*2+1=7 7*2+1=15 15*2+1=31.....
12 26 ?
12*2+2=26 26*2+2=54

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Elizabeth Antoney  (4 years ago)

sixth term will be 54 and seventh term will be 31 as there are 2 series running alternatively 2n+1,2n+2.
so ,26*2+2=54 and 2*15+1=31.

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