Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 11)
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
11.
Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next?
Answer: Option
Explanation:
In this simple addition series, each number increases by 0.8.
Discussion:
45 comments Page 2 of 5.
Vishal mittal said:
8 years ago
1.5, 2.3, 3.1, 3.9,.... Multiply this number by 10 15 23 31 39 ....
Take their difference which is 8
Then 39+8=47
Now divide it by 10 which gives answer 4.7.
Take their difference which is 8
Then 39+8=47
Now divide it by 10 which gives answer 4.7.
(1)
Jagannath rout said:
9 years ago
2.3-1.5 = 0.8
3.1-2.3 = 0.8
3.9-3.1 = 0.8 (Just tell me about how acquire 4.7 this solution ) just addition 3.9+0.8 = 4.7
4.7-3.9 = 0.8.
3.1-2.3 = 0.8
3.9-3.1 = 0.8 (Just tell me about how acquire 4.7 this solution ) just addition 3.9+0.8 = 4.7
4.7-3.9 = 0.8.
(1)
Roshan Roy said:
10 years ago
The formula is +0.8 to the number in the question to get the sum :
1.5+0.8 = 2.3,
2.3+0.8 = 3.1,
3.1+0.8 = 3.9,
3.9+0.8 = 4.7.
Therefore the answer is 4.7.
1.5+0.8 = 2.3,
2.3+0.8 = 3.1,
3.1+0.8 = 3.9,
3.9+0.8 = 4.7.
Therefore the answer is 4.7.
(1)
Hari krishna said:
9 years ago
The logic is, Add 0.8 for each digit.
Urvam said:
9 years ago
We can also solve this question in such a way:
As in all terms, 1 is added to LHS digit and 2 is subtracted in RHS digit.
1 + 1 = 2 & 5 - 2 = 3 = 23.
As well as.
2 + 1 = 3 & 3 - 2 = 1 = 31.
As in all terms, 1 is added to LHS digit and 2 is subtracted in RHS digit.
1 + 1 = 2 & 5 - 2 = 3 = 23.
As well as.
2 + 1 = 3 & 3 - 2 = 1 = 31.
Jeya said:
9 years ago
1.5 + 0.8 = 2.3.
3.1 + 0.8 = 3.9.
3.9 + 0.8 = 4.7.
3.1 + 0.8 = 3.9.
3.9 + 0.8 = 4.7.
Dinesh said:
9 years ago
How 0.8 came?
Tell me the correct explanation.
Tell me the correct explanation.
Amit soni said:
9 years ago
how 0.8 Came?
Please tell me, I wanted to know about this.
Please tell me, I wanted to know about this.
Sruthi said:
8 years ago
It's a simple A.P with common difference .8.
So just add .8 to 3.9.
You get the answer 4.7.
So just add .8 to 3.9.
You get the answer 4.7.
Thameem ansari said:
8 years ago
1.5+.8=2.3
2.3+.8=3.1
3.1+.8=3.9
3.9+.8=4.7 the difference is only no.8.so we can add 8 to the previous number.
2.3+.8=3.1
3.1+.8=3.9
3.9+.8=4.7 the difference is only no.8.so we can add 8 to the previous number.
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