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 5 of 9.
Mannu kumar said:
9 years ago
80-10=70
70-10=60
60-10=50 and so on...
NW
10+5=15
15+5=20
20+5=25 and so on.
Now your final series is 80, 10, 70, 15, 60, 20, 50, 25.
70-10=60
60-10=50 and so on...
NW
10+5=15
15+5=20
20+5=25 and so on.
Now your final series is 80, 10, 70, 15, 60, 20, 50, 25.
Neha said:
9 years ago
80,_70_60_50_(decrease series.) in 10 table.
10 15 20 25( increase series) in 5 table.
10 15 20 25( increase series) in 5 table.
Abhiram said:
9 years ago
Thank you all for explaining this.
Kripal Sharma said:
8 years ago
Thanks to all for this explanation.
Uday said:
8 years ago
Thanks to all for providing this explanation.
Juliana said:
8 years ago
Thanks a lot they right its so easy first you need is
80, 10, 70, 15, 60, 20.
The first pattern is 80 you need to subtract by 10 .in the second add 5 like this
80-10 = 70,
70-10 = 60 and then so on.
The second pattern adds 5 like this
10 + 5 = 15
15 + 5 = 20 and then so on.
80, 10, 70, 15, 60, 20.
The first pattern is 80 you need to subtract by 10 .in the second add 5 like this
80-10 = 70,
70-10 = 60 and then so on.
The second pattern adds 5 like this
10 + 5 = 15
15 + 5 = 20 and then so on.
(1)
Ravindra said:
8 years ago
The 1st pattern like 80-70-60 here added 10.
Now, the 2nd pattern 10-15-20 here added 5.
Now, the 2nd pattern 10-15-20 here added 5.
Sai Abhipsa said:
8 years ago
Thanks to all for the explanation.
Priyanka said:
8 years ago
thank you all for giving the explanation.
Bhavya said:
8 years ago
80-10=70,
70-10=60 with respect to the first series.
10+5=15,
15+5=20 my answer is 20.
70-10=60 with respect to the first series.
10+5=15,
15+5=20 my answer is 20.
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