IBM
Company
Logical Reasoning
Number Series
Q. What is the next number of the following sequence
1. 1/2,5/4,2,11/4,7/2,..
2. 0.5,1.25,2,2.75,3.5,.
3. 5,50,10,40,15,30,20,20,...
4. 11,17,-6,-13,24,30,-19,-26,20,...
Read Solution (Total 12)
-
- 1. 17/4
(2/4,5/4,8/4,11/4,14/4) - 11 years agoHelpfull: Yes(38) No(0)
- 0.5+.75=1.25
2.
1.25+.75=2
2+.75=2.75
2.75+.75=3.5
3.5+.75=4.25 - 11 years agoHelpfull: Yes(28) No(0)
- 1)
1/2,5/4,2,11/4,7/2,...
multiply 4
1/2*4=2
5/4*4=5
2*4=8
11/4*4=11
7/2*4=14
hence 2,5,8,11,14
5-2=3
8-5=3
11-8=3
14-11=3
X-14=3
put the value of x is 17
so 17-14=3
so ans is 17
2)
0.5,1.25,2,2.75,3.5,...
1.25-0.5=0.75
2.275-1.25=1.025
3.5-2.275=0.75
X-3.5=1.025
put the value of x is 4.525
4.525-3.5=1.025
so ans is 4.525
3)
5,50,10,40,15,30,20,20,..
5,10,15,20,25
so ans is 25
4)
11,17,-6,-13,24,30,-19,-26,20,....
17-11=6
-13-(-6)=-13+6=-7
30-24=6
-26-(-19)=-26+19=-7
X-20=6
so put the value of x is 26
26-20=6
so ans is 26
- 11 years agoHelpfull: Yes(27) No(6)
- 11,17,-6,-13,24,30,-19,-26,20,...
11+6=17
-6-7=-13
+6,-7,+6,-7....
So answer is 20+6=26.
correct me if i am wrong. - 11 years agoHelpfull: Yes(20) No(6)
- 1. 17/4
2. 4.25
3. 25
4. 26 - 11 years agoHelpfull: Yes(9) No(0)
- question 3
sol
there are 2 series 5,10,15,20 and another one is 50,40,30,20
so 25,10 - 11 years agoHelpfull: Yes(7) No(1)
- 1.
1/2=0.5
0.5+0.75=1.25
5/4=1.25
1.25+0.75=2
and so on
7/2=3.5+0.75=4.25=17/4
answer is 17/4 - 11 years agoHelpfull: Yes(3) No(0)
- 1.add 3/4 to next tems to obtain the series ans is 17/4
2.0.75 is the common difference.....so the ans is 4.25
3.odd terms are multiples of 5 so ans is 25
4.the diifference between the terms is 6 and -7 alternatively ans is 26 - 11 years agoHelpfull: Yes(3) No(0)
- 5,-,10,-,15,-,20,-,25
for 1st number there is addition of 5 in each next to next number and for second number there is subtraction of 10 in each next to next number - 11 years agoHelpfull: Yes(2) No(0)
- 11,17,-6,-13,24,30,-19,-26,20,...
11+6=17
-6-7=-13
+6,-7,+6,-7....
So answer is 20+6=26. - 11 years agoHelpfull: Yes(1) No(0)
- 2:0.5,1.25,2,2.75,3.5....4.25 diff of each is 0.75
- 11 years agoHelpfull: Yes(0) No(0)
- 1. the series can be rewritten as 2/4,5/4,8/4,11/4,14/4.
and the difference among the numerators is 3.
so the next term will be 17/4. - 11 years agoHelpfull: Yes(0) No(0)
IBM Other Question
Q. What is the next number of the following sequences
1. 38,36,76,35,114,34,..
2. 18,6,24,4,30,10,12,2,6,...
3. 1.25,3.71,1.50,1,8.1,1.75,-1,9.1,2.00,...
4.9,3,6,21,9,12,33,15,18,45,21,24,...
plz post the english ques asked on 5th or 6th jan in pune/bangalore