Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 16)
Directions to Solve
In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much
16.
Look at this series: 80, 10, 70, 15, 60, ... What number should come next?
Answer: Option
Explanation:
This is an alternating addition and subtraction series. In the first pattern, 10 is subtracted from each number to arrive at the next. In the second, 5 is added to each number to arrive at the next.
Discussion:
83 comments Page 8 of 9.
VIKAS DHIMAN said:
1 decade ago
80,70,60,50-> A series with decreasment of 10.
10,15,20,25-> A series with increasment of 5.
10,15,20,25-> A series with increasment of 5.
Gilbert said:
1 decade ago
Thanks for your help! I've never understood this since middle school.
Samstarnovi said:
1 decade ago
Its very easy guys-
80-10=70
10=5=15
and so on.
80-10=70
10=5=15
and so on.
Ravi said:
1 decade ago
Thanks to all of u, who have done splendid job by sharing with each other. Truly this is a real place of collaboration, hatsoff to all.
Shweta said:
1 decade ago
80,10,70,15,60,
nw we hav to seperate this
80,70,60,50,
[this is decresed by 10]
10,15,20,
[this is increased by 5]
nw compare both which hav least num at the end.20 is the ans
nw we hav to seperate this
80,70,60,50,
[this is decresed by 10]
10,15,20,
[this is increased by 5]
nw compare both which hav least num at the end.20 is the ans
Sulekha said:
1 decade ago
Thanks for explanation.
Udayvenkat said:
1 decade ago
First 80, 10 is subracted it comes to 70 then to the previous 10 add 5 then again sub 10 from 70 it comes to 60 then again to the previous 15 add another 5 it comes to 20.
Here he mentioned all the questions and answere
80,10,70,15,60,20,50,25..........
Here he mentioned all the questions and answere
80,10,70,15,60,20,50,25..........
Rohit T George said:
1 decade ago
Thanks a Lot!!
Prasanna said:
1 decade ago
Thank for your explanation.
Sundar said:
1 decade ago
Hi All,
The series will goes like this:
80, 10, 70, 15, 60, 20, 50, 25, 40, 30, 30, 35, 20 40, 10, 45 ...
This series contains the following 2 series alternatively.
80 70 60 50 ---> A series with decrement of 10
10 15 20 25 ---? A series with increment of 5
Hope your understand. Have a nice day guys!
The series will goes like this:
80, 10, 70, 15, 60, 20, 50, 25, 40, 30, 30, 35, 20 40, 10, 45 ...
This series contains the following 2 series alternatively.
80 70 60 50 ---> A series with decrement of 10
10 15 20 25 ---? A series with increment of 5
Hope your understand. Have a nice day guys!
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