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 1 of 4.
Nandan behera said:
3 years ago
664/2 = 332,
340/2 = 170,
Now ?/2 = 89,
That is 178/2 = 89.
So, the ans is : 178
340/2 = 170,
Now ?/2 = 89,
That is 178/2 = 89.
So, the ans is : 178
(31)
Ali said:
5 years ago
Solution:
664/332 = 332 then 332+8.
340/2 = 170 + 8 = 178 => answer.
664/332 = 332 then 332+8.
340/2 = 170 + 8 = 178 => answer.
(9)
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)
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)
Akash kumar said:
5 years ago
664/2 = 332.
340/2 = 140.
89*2 = 178.
340/2 = 140.
89*2 = 178.
(1)
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)
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.
Adhul said:
6 years ago
Yes, the answer is 85 (i.e 170/2).
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.
Jayeeta said:
7 years ago
Thank you @Saurabh.
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