IBM
Company
Logical Reasoning
Number Series
2,5,9,1,5,10,3,8,?
63/4,16,26,46/5,9,19,194/3,65,75,243/8,?
4,2,4,8,6,8,16,?
48,24,35,7,16,8,75,15,8,40?
9,4,16,6,36,21,441,?
49,7,98,16,4,48,9,3,36,25,5,?
5,6,6.5,6.5,8,7,9.5,?
9,15,26/3,29/2,25/3,14,8,27/2,?
1,2,3,6,11,20,37,68,?
1,1,1,2,2,2,3,4,3,3,5,6,?
11 ,8 ,17 ,14 ,23 ,24 ,31 ,32, ?
Read Solution (Total 33)
-
- ans:1. (2,5,9),(1,5,10),(3,8,?).
diff of first group is 3 n 4 respectively,and for 2nd grp 4 n 5,for the 3rd group first diff is 8-3=5,so the next diff will be 6.so the ans is- 8+6=14. - 11 years agoHelpfull: Yes(29) No(2)
- 2nd ans is : 14.
its a minus and plus series.
(4,2,4),(8,6,8),(16,16-2=14,16). - 11 years agoHelpfull: Yes(17) No(3)
- series 5,6,6.5,6.5,8,7,9.5,?
(5+6)=11
(6.5+6.5)=13
(8+7)=15
(9.5+x)=17 x=17-9.5= 7.5(ANS) - 11 years agoHelpfull: Yes(12) No(1)
- 63/4,16,26,46/5,9,19,194/3,65,75,243/8,?
i think,
63/4=15.75=16
16+10=26
46/5=9.2=9
9+10=19
194/3= 64.66=65
65+10=75
243/8=30.3=30
- 11 years agoHelpfull: Yes(11) No(3)
- Question - 11,8,17,14,23,24,31,32, ?
ans is 37.
Process..
11
(next prime number - 5).. i.e. 13-5=8
17
(next prime number - 5) ... 19-5=14
23
(next prime number - 5).. 29-5=24
31
(next prime number - 5).. 37-5=32.
ans is 37 - 11 years agoHelpfull: Yes(10) No(12)
- 10)
1,1,1,2,2,2,3,4,3,3,5,6,4(ans)
(1,1),[1,2],(2,2),[3,4],(3,3),[5,6],(4{ans},4) - 11 years agoHelpfull: Yes(10) No(6)
- ans for 9,15,26/3... :- 23/3.
exp: just divide the no.s in the odd place by 3. aand decrease the value of numerator by 1.(27/3=9,26/3,25/3,24/3=8,23/3[ans]) - 11 years agoHelpfull: Yes(10) No(5)
- 1,2,3,6,11,20,37,68:
ans=> 20+37+68=125. fibbo series. - 11 years agoHelpfull: Yes(10) No(3)
- 5) 9,4,16,6,36,21,441,?
this is how it goes
-5 ^2 -10 ^2 -15 ^2 -20
So, the answer is 421
6) 49,7,98,16,4,48,9,3,36,25,5,?
(49,7,98); (16,4,48); (9,3,36); (25,5,?) are groups
now see how they come.
7^2=49 4^2=16 3^2=9 5^2=25
49*2=98 16*3=48 9*4=36 25*5=125
So, the answer is 125
9) take first 3 numbers to get 4th
e.g 1+2+3=6; 2+3+6=11
Likewise, 20+37+68=125
10) 1,1,1,2,2,2,3,4,3,3,5,6,?
There are four series mixed.
(1,2,3,?)
(1,2,3,...)
(1,3,5,...) and
(2,4,6,...)
See very carefully. there are 3 numbers in between of two members of any series.
So, the answer is 4 - 11 years agoHelpfull: Yes(6) No(0)
- 5-2=3 9-5=4 3,4
5-1=4 10-5=5 4,5
8-3=5 14-6=8 5,6
So Ans: 14
- 11 years agoHelpfull: Yes(5) No(2)
- 1) 14
2) 34,44
3)14,16
5)421.. 9-5=4 ,4^2=16
16-10=6, 6^2=36
36-15=21, 21^2=441
441-20=421 ans
6)125
(49,7,98) (16,4,48) (9,3,36) (25,5,?)
49*2=98
16*3=48
9*4=36
25*5=125 ans...
7.)ans- 7.5
5,6.5,8,9.5
6,6.5,7,??? - 11 years agoHelpfull: Yes(5) No(2)
- 9)
1,2,3,6,11,20,37,68,125(ans)
1+2+3 = 6
2+3+6 = 11
3+6+11 = 20
6+11+20 = 37
11+20+37 = 68
20+37+68 = 125 - 11 years agoHelpfull: Yes(4) No(0)
- i think 48,24,35,7,16,8,75,15,8,40...........dis series is incomplete.
- 11 years agoHelpfull: Yes(3) No(1)
- 49,7,98,16,4,48,9,3,36,25,5
49*2=98
16*3=48
9*4=36
25*5=125
5,6,6.5,6.5,8,7,7.8(ans)
9,15,26/3,29/2,25/3,14=28/2,8=24/3,27/2,23/3 - 11 years agoHelpfull: Yes(2) No(0)
- Please solve
1)9,12,4,8,12,15,5,9,3,6,2,6,6,9,?
2)11,8,17,14,23,24,31,32,?
3)1,1,1,2,2,2,3,4,3,3,5,6,?
- 11 years agoHelpfull: Yes(2) No(1)
- 8)9 15 8.66 14.50 8.33 14 8 13.50 ?
every time -0.33 is deducted
ans:-7.66 - 11 years agoHelpfull: Yes(2) No(0)
- 3) 10 or 14
- 11 years agoHelpfull: Yes(1) No(2)
- Question - 11,8,17,14,23,24,31,32, ?
ans is 37.
Process..
11
(next prime number - 5).. i.e. 13-5=8
17
(next prime number - 5) ... 19-5=14
23
(next prime number - 5).. 27-5=24
31
(next prime number - 5).. 37-5=32.
ans is 37 - 11 years agoHelpfull: Yes(1) No(12)
- 5,6,6.5,6.5,8,7,9.5
5+1.5=6.5
6+.5=6.5
6.5+1.5=8
6.5+.5=7
8+1.5=9.5
7+.5=7.5 - 11 years agoHelpfull: Yes(1) No(0)
- ans 2--> 63/4,(63+1)/4,16+10,46/5,(46-1)/5,9+10,194/3,(194+1)/3,65+10,243/8,(243-1)/8,30.25+10,
ans-242/8=30.25 - 11 years agoHelpfull: Yes(1) No(0)
- Qs no 10
Divide the series like in 3 parts as below
1,1,1,2
2,2,3,4
3,3,5,6
Consider each column seperately..and u will get the ans..
ans is 4.. - 11 years agoHelpfull: Yes(1) No(0)
- 1.(2,5,9),(1,5,10),(3,8,?). sum of each three numbers is 16.so the answer should be 5 because 3+8+5=16.
- 11 years agoHelpfull: Yes(1) No(0)
- 11,8,17,23,24,31,32
first take diff of 11 and 8 which is -3
so
11-3=8
8+9=17
17-3=14
14+9=23
23+1=24
24+7=31
31+1=32
32+7=39
so the diff are -3,+9,-3,+9,+1,+7,+1,....so last one should be +7
ans is 39. - 11 years agoHelpfull: Yes(1) No(0)
- 2. 63/4=15.75~ 16
46/5=9.2~ 9
194/3=64.6~ 65
similarly, 243/8=30.375 ~ 30
The answer is rounded off to the nearest integer. Ans=30 - 11 years agoHelpfull: Yes(0) No(0)
- q4-
g1=4.2+3=7.2,,7.2+4.2=11.4
g2=6.1+3=9.1,,9.1+6.1=15.2
g3=3.8+3=6.8,,6.8+3.8=10.6 ans - 11 years agoHelpfull: Yes(0) No(0)
- Qs.2
63/4,16,26
46/5,9,19
194/3,65,75
243/8,?
Here 16x4=64-1=63
9x5=45+1=46
65x3=195-1=194
Thus, 243-1=242 242/8=30.25 (Ans) :) - 11 years agoHelpfull: Yes(0) No(0)
- (2,5,9),(1,5,10),(3,8,?)
5-2=3
9-5=4
5-1=4
10-5=5
8-3=5
?-8=6
So, Ans: ?=8+6=14 - 11 years agoHelpfull: Yes(0) No(0)
- ghatiya logic laga rahi hun agar galat hona toh maaf kar dena.....
for q no.2
dont consider fraction only consider (16,26)diff is 10 and sum of digit is(7,8)
similarly take(9,19) diff is 10 and sum of digit is (9,10)
Likewise check all ans will be 85,95 - 10 years agoHelpfull: Yes(0) No(0)
- 11-3=8,8+9=17,17-3=14,14+9=23,23+1=24,24+7=31,31+1=32,32+7=39 so ans is 39 ans for the last series is 39
1,2,3,6,11,20,37,68,? ans is 68+37+20=125
- 10 years agoHelpfull: Yes(0) No(0)
- q) 11,8,17,14,23,24,31,32,?
11
13( prime no. after 11) -5=8
17 (prime no. after 13)
19-5= 14
23
29-5=24
31(prime no. after 29)
37-5=32
41(prime no. after 37) => ANSWER: 41 - 10 years agoHelpfull: Yes(0) No(0)
- 2,5,9,1,5,10,3,8,...
here...think like this..(2,5,9) (1,5,10) (3,8,x)--->(2+5+9=16) (1+5+10=16) (3+8+5=16)
so i think the next number in the series is 5. - 9 years agoHelpfull: Yes(0) No(0)
- question 2:- Answer 40
- 8 years agoHelpfull: Yes(0) No(0)
- 2,2+3,5+4,1,1+4,5+5,3,3+5,8+6=14
roundof(243/8)=30,30+10=40
there have three series 4,.,.,8,.,.,12 2,.,.,6,.,.,10 4,.,.,8,.,.,12 ANS: 10,12
9-5,4^2,16-10,6^2,36-15,21^2,441-20=421 Ans 421.
49^1/2,49*2,16,16^1/2,16*3,9,9^1/2,9*4,25,25^1/2,25*5=125 ANS:125
5,5+1,6+0.5,6.5,6.5*1.5,8-1,9.5,9.5+2=11.5 Ans:11.5
9,15,26/3,29/2,25/3,14,8,27/2,8-1/3=23/3 ANS:23/3
1,2,3,6,11,20,37,68,? Ans 125 addition of previous three
- 8 years agoHelpfull: Yes(0) No(0)
IBM Other Question
In a group there are two kinds of people type A & type B.type A people answer for any question as YES & that of type B as NO. If they can not answer to these question then they remain silent. the mayor asks question to them as follows........
(1) If he asks a person are u type A
a. YES
b. NO
c. Silent
d. Can not be determined
(2) He asks two persons X &Ysimultaneously whether u of same type a. YES
b. NO
c. YES or NO
d. Silent
e. can not be determined
(3) Pointing to a person X he asks Y what is his type
a. YES
b. No
c. Silent
d can not be determined
(4) Pointing to a person X he asks Y if I ask him whether r u type A will he answer YES.Y says NO .what type of B is
a. YES
b. NO
c. Silent
d. can not be determined
1. 1 ,3 ,1 ,2.5 ,5 ,1 ,4 ,5 ,4 ,8 ,7
2. A series like this 41.45 ,41.5 ,42 ,18.23 ,18.2 ,18
3. 11 ,8 ,17 ,14 ,23 ,24 ,31 ,32
4. 4 ,3 ,144 ,1.5 ,2 ,9 ,3.2 ,2
5. 4.2 ,7.2 ,11.4 ,6.1 , 9.1 , 15.2 ,3.8 , 6.8
6. 1/5 , 1/2 , 1/3 , 2/5 ,1, 2/3, 3/5, 1 1/2 ,1, 4/5
7. 5, 1, 2, 8, 8, 1, 0, 9, 9, 2, 3
8. 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3
9. 6, 3, 3, 9, 12, 5, 7, 35, 8, 6, 2
10. 24, 42, 1/2, 2, 65, 56, 1 1/5, 5/6, 73, 37
11. 4, 2, 5, 9, 5, 11, 13, 7, 16, 17, 9
12. 8, 16, 3, 27, 4, 8, 7, 19, 2, 0, 7
13. 5/6, 1/3, 1/2, 1/2, 2/8, 1/4, 5/6, 1/6, 2/3, 1/2, 1/3
14. 115, 100, 86, 74, 65, 60
15. 100, 98, 95, 90, 83
16. 0, 8, 12, 26, 23
17. 7.2, 2.2, 3.2, 16, 11, 12, 60, 55, 56
18. 18, 24, 5, 21, 8, 27, 17, 23, 4, 24, 30