Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 4 (Q.No. 2)
Directions to Solve
Find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters
2.
Look at this series: 664, 332, 340, 170, ____, 89, ... What number should fill the blank?
Answer: Option
Explanation:
This is an alternating division and addition series: First, divide by 2, and then add 8.
Discussion:
32 comments Page 3 of 4.
Shrinath keni said:
8 years ago
Correct answer is 97.
Just add all the numbers. The answer will be alternate 7 and 8.
Just add all the numbers. The answer will be alternate 7 and 8.
Chandu said:
8 years ago
Answer is 178. I agree.
Jayeeta said:
7 years ago
Thank you @Saurabh.
Abhijit said:
7 years ago
664-332=332.
340-170=170.
therefore the difference should be same thus;
178-89=89.
Hence the answer is 178.
340-170=170.
therefore the difference should be same thus;
178-89=89.
Hence the answer is 178.
Adhul said:
6 years ago
Yes, the answer is 85 (i.e 170/2).
Sachin kumar said:
6 years ago
The successor number is the half of the predecessor. So, choose from the option which is double of the successor of the blank given i.e 178 is double of 89.
Vamsi said:
5 years ago
I Agree that answer:
664, 332, 340, 170, ____, 89
After 2 number multiply by 2,
Like 332*2 = 664.
170 *2 = 340.
89*2 = 178 So the answer is 178.
664, 332, 340, 170, ____, 89
After 2 number multiply by 2,
Like 332*2 = 664.
170 *2 = 340.
89*2 = 178 So the answer is 178.
(1)
Akash kumar said:
5 years ago
664/2 = 332.
340/2 = 140.
89*2 = 178.
340/2 = 140.
89*2 = 178.
(1)
GAUTAM said:
5 years ago
664, 332, 340, 170, ___, 89.
89 * 2 = 178,
170 * 2 = 340,
332 * 2 = 664.
89 * 2 = 178,
170 * 2 = 340,
332 * 2 = 664.
(6)
Saranya. R said:
5 years ago
664, 332, 340, 170, ___, 89.
664/2 = 332,
332+8 = 340,
340/2 = 170,
170+8 = 178,
178/2 = 89.
664/2 = 332,
332+8 = 340,
340/2 = 170,
170+8 = 178,
178/2 = 89.
(12)
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