Verbal Reasoning - Series Completion - Discussion
Discussion Forum : Series Completion - Section 2 (Q.No. 21)
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
21.
4, 10, ?, 82, 244, 730
Answer: Option
Explanation:
Each number in the series is 2 less than thrice the preceding number.
So, missing number = (10 x 3) - 2 = 28.
Discussion:
6 comments Page 1 of 1.
Mehak said:
1 decade ago
Difference between the numbers are multiples of 3 of the previous difference.
Like.... 730-224 = 486.
224-82 = 162.
And 486/162 = 3.
Therefore 3*(10-4) = 3*6 = 18 is the difference between 3rd term and 10.
Therefore 3rd term is 10+18 = 28.
Like.... 730-224 = 486.
224-82 = 162.
And 486/162 = 3.
Therefore 3*(10-4) = 3*6 = 18 is the difference between 3rd term and 10.
Therefore 3rd term is 10+18 = 28.
Jennifer said:
8 years ago
3^1+1= 4,
3^2+1= 10,
3^3+1= 28 Answer
3^4+1= 82,
3^5+1= 244,
3^6+1= 730,
So the correct answer is Option B = 28.
3^2+1= 10,
3^3+1= 28 Answer
3^4+1= 82,
3^5+1= 244,
3^6+1= 730,
So the correct answer is Option B = 28.
(2)
Mitul said:
9 years ago
4, 7, 12, ?, 28, 39.
Satyajit Swain said:
8 years ago
Thank you @Jennifer.
Qwerty said:
9 years ago
19 @Mitul.
Abdullah said:
1 decade ago
3^i+1
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