Verbal Reasoning - Series Completion - Discussion
Discussion Forum : Series Completion - Section 3 (Q.No. 14)
Directions to Solve
In this type of questions, one term in the number series is wrong. Find out the wrong term.
14.
1, 5, 9, 15, 25, 37, 49
Answer: Option
Explanation:
The terms of the given series are 12, (22 + 1), 32, (42..+ 1), 52, (62 + 1), 72.
So, 15 is wrong and must be replaced by (42 + 1) i.e. 17.
Discussion:
4 comments Page 1 of 1.
Shekhar said:
1 decade ago
I want to comment on this because how come square of 4 plus 1 = 15 as mentioned in the logic. ?
Instead d logic is first, third, fifth and seventh terms are squares of 1, 3, 5 and 7.
And second, fourth and sixth terms are multiples of 5 i.e. 5, 15, 25.
So option d) 37 is wrong.
Instead d logic is first, third, fifth and seventh terms are squares of 1, 3, 5 and 7.
And second, fourth and sixth terms are multiples of 5 i.e. 5, 15, 25.
So option d) 37 is wrong.
Lalitha Meghana said:
9 years ago
Hey, can we do it this way?
1, 5, 9, 15, 25, 37, 49.
It follows: 1sq, 2sq - 1, 3sq, 4sq - 1, 5sq, 6sq - 1 7sq.
The wrong one is 37.
The correct answer should be 6sq - 1 = 35. Is this correct?
1, 5, 9, 15, 25, 37, 49.
It follows: 1sq, 2sq - 1, 3sq, 4sq - 1, 5sq, 6sq - 1 7sq.
The wrong one is 37.
The correct answer should be 6sq - 1 = 35. Is this correct?
R@JESH said:
1 decade ago
This series can also be obtained by adding 4,4,8,8,16,16,...to the preceding nos.
R@JESH said:
1 decade ago
@shekhar ,correct answer is B dear ..where you see d option
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