Latest CAT Aptitude Question SOLUTION: WHAT IS THE MISSING NUMBER IN THIS SERIES 8 2 14 6 11 ? 14 6 18 12

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(#M40011790) CAT question Keep an EYE

WHAT IS THE MISSING NUMBER IN THIS SERIES
8 2 14 6 11 ? 14 6 18 12

Asked In CAT shailendra kumar (11 years ago)

Unsolved Read Solution (8)

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BRIJESH KUMAR GUPTA  (11 years ago)

1st+last=20
2nd +2Nd last=20
3rd + 3rd last=20
similarly
missing term=9

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G.SOWJANYA  (11 years ago)

the ans is 9

Is this solution Helpfull? Yes (2) | No (1)  

lakshmi reddy  (11 years ago)

given series: 8 2 14 6 11 ? 14 6 18 12
odd term series: 8 14 11 14 18
even term series: 2 6 x 6 12
odd term series:
8+(6)=14
14+(-3)=11
11+(3)=14
14+(4)=18...where +6,-3,+3,+4 is the series of common difference b/w adjacent numbers in
odd term series. now +4, +3, -3, +6 would be the series of common difference b/w adjacent numbers in even term series.
So,even term series:
2+(4)=6
6+(3)=x
x+(-3)=6
6+(6)=12---->x=9.....So, value of x =?=9....

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arunabha  (11 years ago)

how 9?
logic plz.

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madhavaram mahendra  (11 years ago)

difference between (8,2)=6 decreasing
(2,14)=12 increase
(14,6)=8 decrease
(6,11)=5 increase
and from right to left
(12,18)=6 increase
(18,6)=12 decrease
(6,14)=8 increase
so they just reversing the order and order of decrease and increase
so we have to deduct from 1
hence ans is 9

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amit garg  (11 years ago)

they cant ask these stupid question in cat..
and is 9 rsn is as explained

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sai yaswanth  (11 years ago)

ans is 9 beacuse 8-2=6,14-2=12,14-6=8,11-6=5this is from left to right from right to left this reverse so 5 is added to 6 in left to right to get 11 and similar;y 5 should be decreased from 14 from right tot left so 14-5=9

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aastha awal  (9 years ago)

didnt get d answer

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