IBM
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Logical Reasoning
Number Series
What is the next number of the following sequence
.7, 1.2, 1.2, 2.2, 1.7, 3.2, 2.2, 4.2,.....?
Read Solution (Total 31)
-
- there are two series with alternate terms
(.7,1.2,1.7,2.2, ) and (1.2,2.2,3.2,4.2, )
both series are AP with cd .5 & 1 respectively
so next two terms are
2.2+.5=2.7 & 4.2+1=5.2
- 11 years agoHelpfull: Yes(50) No(11)
- 2.7 alternate increase of 0.5 and 1
- 11 years agoHelpfull: Yes(24) No(2)
- here 2 AP runs alternative..
one have a difference of .5
and other have a difference of 1
ans 2.2+.5=2.7 - 11 years agoHelpfull: Yes(11) No(1)
- 2.7... difference between 1st 3rd 5th so on terms is 0.5 and 2nd 4th 6th so on terms is 1.0
- 11 years agoHelpfull: Yes(5) No(0)
- .7+.5=1.2,1.2+.5=1.7,1.7+.5=2.2,2.2+.5=2.7
answer is = 2.7 - 11 years agoHelpfull: Yes(5) No(1)
- 0.7,1.2,1.2,2.2,1.7,3.2,2.2,4.2,?
here 0.7,1.2,1.7,2.2 the difference between two adjacent numbers is 0.5 so
2.2+0.5=?
so ans: 2.7
- 11 years agoHelpfull: Yes(3) No(0)
- 1.2-.7=..5
2.2-1.2=1.0
3.2-1.7=1.5
4.2-2.2=2.0
moreover
difference between 2nd and 3rd,4th and 5th ,5th and 6th is 0,0.5,1.0respectively.
therefore diff. between 6th and 7th will be 1.5
i.e. 4.2-1.5=2.7 - 11 years agoHelpfull: Yes(2) No(0)
- {.7,1.2,1.2,2.2},{1.7,3.2,2.2,4.2},{2.7,5.2,3.2,6.2} (make 3 groups)
.7+1=1.7;1.7+1=2.7 (adding 1)
1.2+2=3.2;3.2+2=4.2 (adding 2)
1.2+1=2.2;2.2+1=3.2 (adding 1)
2.2+2=4.2;4.2+2=6.2 (adding 2) - 11 years agoHelpfull: Yes(1) No(3)
- 2.7
alternate series of 0.7 increasing with .5 - 11 years agoHelpfull: Yes(1) No(1)
- (0.7,1,2,1.7,2.2) (1.2,2.2,3.2,4.2)
first set each digit incremented by 0.5
second set each digit incremented by 1
so answer is 2.2+0.5=2.7 - 11 years agoHelpfull: Yes(1) No(0)
- .7+.5=1.2
1.2+.5=1.7
so answer is 2.7 - 11 years agoHelpfull: Yes(1) No(0)
- if we consider the series in 2 parts,the we get-
(0.7,1.2,1.7,2.2__) and (1.2,2.2,3.2,4.2,__)
so for the first one if we add 0.5 to each term,we get the final ans as 2.7 i.e.
0.7+0.5=1.2
1.2+0.5=1.7
1.7+0.5=2.2
2.2+0.5=2.7
and the second one will be obtained by adding 1.0 to each term,i.e.----
1.2+1.0=2.2
2.2+1.0=3.2
3.2+1.0=4.2
4.2+1.0=5.2
thus the two ans are--2.7 and 5.2 - 11 years agoHelpfull: Yes(1) No(0)
- .7,1.2,1.7,2.2,2.7
1.2,2.2,3.2,4.2,5.2 - 11 years agoHelpfull: Yes(0) No(0)
- 2.7
Divide odd number and even number places numbers
+.5 and +1 - 11 years agoHelpfull: Yes(0) No(0)
- Ans: 2.7
this is alternate series.
.7+.5= 1.2, 1.2+1.0= 2.2, 1.7+1.5= 3.2, 2.2+2.0 = 4.2 ;
1.2-0= 1.2, 2.2-0.5= 1.7, 3.2-1.0= 2.2, 4.2-1.5= 2.7
hence ans: 2.7
- 11 years agoHelpfull: Yes(0) No(0)
- 2.7 because the series is increasing alternate as 0.5 and 1
0.7,1.2,1.7,2.2,2.7
1.2,2.2,3.2,4.2 - 11 years agoHelpfull: Yes(0) No(0)
- difference between them is 0.5,0,1.0,-0.5,1.5,-1.0,2.0....again take difference between differences we get 0.5,1.0,1.5,2.0,2.5,3.0...next difference will be 3.5 so answer is 2.7
- 11 years agoHelpfull: Yes(0) No(0)
- answer is 2.7
- 11 years agoHelpfull: Yes(0) No(0)
- 2.2+0.5=2.7
- 11 years agoHelpfull: Yes(0) No(0)
- 2.7
the ultimate difference is -1.5
so, 4.2-1.5=2.7 - 11 years agoHelpfull: Yes(0) No(0)
- Ans: 2.7
.7+.5=1.2+.5=1.7+.5=2.2+.5=2.7
1.2+1=2.2+1=3.2+1=4.2 - 11 years agoHelpfull: Yes(0) No(0)
- 2.7.....1st term , 3rd term and so alternate terms increasing by .5.
- 11 years agoHelpfull: Yes(0) No(0)
- from left to right alternately .5 is being added(.7+.5=1.2,1.2+.5=1.7,1.7+.5=2.2,2.2+.5=2.7) so the ans is 2.7.
- 11 years agoHelpfull: Yes(0) No(0)
- even digits are with a difference of 1.0
odd digits are with a difference of .5 hence last digit will be 2.2+.5 = 2.7
- 11 years agoHelpfull: Yes(0) No(0)
- (.7,1.2,1.7,2.2,2.7)
(1.2,2.2,3.2,4.2)
2.7 ans - 11 years agoHelpfull: Yes(0) No(0)
- two series= .7,1.2,1.7,2.2,next
& 1.2,2.2,3.2,4.2..........
next term will be 5th term of 1st series ..the increment of each term of 1st series is .5
i.e. next term is.....2.2+.5=2.7 - 11 years agoHelpfull: Yes(0) No(0)
- 2.7
solution---
0.7+1=1.7
1.2+2=3.2
1.2+1=2.2
2.2+2=4.2
similarly 1.7+1=2.7 so ans is 2.7 - 11 years agoHelpfull: Yes(0) No(0)
- 2.7
(.7+10=1.7,1.7+10=2.7) - 9 years agoHelpfull: Yes(0) No(0)
- two sequention .7 1.2 1.5 2.2 2.7
1.2 2.2 3.2 4.2 ..
2.7 correct ans - 9 years agoHelpfull: Yes(0) No(0)
- ANSWERS IS: 2.7
- 9 years agoHelpfull: Yes(0) No(0)
- the answer is 2.7
- 6 years agoHelpfull: Yes(0) No(0)
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