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 2 of 9.
Gurmeet Soni said:
8 years ago
80,70,60 _"10"
10,15,20_ "5"
First Numbers " Subtraction"
80 - 10 = 70
70 - 10 = 60
Second Numbers " Addition"
10 + 5 = 15
15 + 5 = 20.
10,15,20_ "5"
First Numbers " Subtraction"
80 - 10 = 70
70 - 10 = 60
Second Numbers " Addition"
10 + 5 = 15
15 + 5 = 20.
(2)
Shikha said:
2 decades ago
I didn't got this answer, I want a clarification.
(1)
Syed ameen kamal said:
12 months ago
Very good, Thanks all for explaining the answer.
(1)
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)
Sumaya said:
2 decades ago
Please explain in detail.
(1)
Novartis said:
2 decades ago
More clarification needed, please help.
(1)
Pooja said:
6 years ago
Thanks for the answer.
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.
Manjula said:
6 years ago
Thanks @Sundar.
Karmveer singh said:
7 years ago
The series likes this as 80 10 70 15 60 20 50 25 40 30 30 35 20 40 10 45 0 50.
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