Latest CSC Aptitude Question SOLUTION: Insert the missing number 3, 4, 7, 16, 43, 124, ... A. 367 B. 356 C. 125 D. 1222

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(#M40006757) CSC question series Keep an EYE

Insert the missing number
3, 4, 7, 16, 43, 124, ...
A. 367 B. 356
C. 125 D. 1222

Asked In CSC (12 years ago)

Unsolved Read Solution (5)

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sanjeevi  (12 years ago)

ans:A . the series is difference is 1,3,9,27,81 its multiples of 3.so 81*3=243. add the 243 with 124 it is 367.

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Shiv Kumar  (12 years ago)

ANs: A. 367

Series is having difference between susequest next number and the nuber with multiplication by 3
3, 4, 7, 16, 43, 124, ...
Differnce between 4 and 3 is 1, multiply with three and add 4 to it. 7 will come
Differnce between 7 and 4 is 3, multiply with three and add 7 to it. 16 will come
differnce between 16 and 7 is 9, multiply with three and add 16 to it. 43 will come
differnce between 43 and 16 is 27, multiply with three and add 43 to it. 124 will come
differnce between 124 and 43 is 81, multiply with three and add 124 to it. 367 will come

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sandeep verma  (12 years ago)

A.367 124+81*3=..7=ans is 367

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Vignesh  (12 years ago)

Ans = A)367
Exp

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saiprakash  (6 years ago)

Tn+1 -Tn=3^(n-1)
T7-T6=3^5
T7=243+124=367
hence option A

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