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 3 of 5.
Hari krishna said:
9 years ago
The logic is, Add 0.8 for each digit.
M.RAGHURAM PGDM 1 said:
9 years ago
Add by .8 so the answer is 4.7.
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.
Vishalsaini said:
9 years ago
It's a good step for students and very helpful.
Vinay said:
9 years ago
Yes, the answer is 4.7. Thank you all.
Veerendra devadiga said:
9 years ago
1.5 + 0.8 = 2.3.
2.3 + 0.8 = 3.1.
3.1 + 0.8 = 3.9.
3.9 + 0.8 = 4.7.
1.5, 2.3, 3.1, 3.9, 4.7.
2.3 + 0.8 = 3.1.
3.1 + 0.8 = 3.9.
3.9 + 0.8 = 4.7.
1.5, 2.3, 3.1, 3.9, 4.7.
Anusha said:
9 years ago
2.3 - 1.5 = 0.8.
3.1 - 2.3 = 0.8.
3.9 - 3.1 = 0.8.
x - 3.9 = 0.8 => x = 0.8 + 3.9 = 4.7
So answer is C.
3.1 - 2.3 = 0.8.
3.9 - 3.1 = 0.8.
x - 3.9 = 0.8 => x = 0.8 + 3.9 = 4.7
So answer is C.
Roshan Roy said:
9 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.
Roshan Roy said:
9 years ago
In this simple addition series, each number increases by 0.8.
Alish said:
10 years ago
1.5+0.8 = 2.3,
2.3+0.8 = 3.1,
3.1+0.8 = 3.9,
3.9+0.8 = 4.7.
Answer: 4.7.
2.3+0.8 = 3.1,
3.1+0.8 = 3.9,
3.9+0.8 = 4.7.
Answer: 4.7.
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