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Logical Reasoning
Number Series
What is the next number of the following sequence
1/2,16,4,15,0.3,56,?
Read Solution (Total 2)
-
- it may be wrong series
(8,1/2,16,4),(15,0.3,50,4.5),(6,0.2,30,?)
now logic is
8/(1/2)=16 and 8*1/2=4
similarly 15/(0.3)=50 and 15*(0.3)=4.5
*****6/(0.2)=30 and 6*(0.2)=1.2 ANS - 10 years agoHelpfull: Yes(8) No(2)
- First : 1/2
Second : 16x+8 or 16
Third : x/4 or 4
Fourth : 16x−49 or 15
Fifth : x/5 or 3
Sixth : 16x+8 or 56
Seventh : x/6 or 28/3 - 4 years agoHelpfull: Yes(0) No(0)
IBM Other Question
What is the next number of the following sequence
-3, 6, 1, -2, 4, -1, -1, 2, -3,.... ?
What is the next number of the following sequence
1) 3,4,12,6,1,8,8,4,5,6,30,__
2) 0,1,1,2,0.5,2,2,4,2,2,4,3,7,2,?
3) 1,1,2,4,6,36,39,1521,?
4) 7,4,6,3,4.5,1.5,2.25,? Ans: -0.75
5) 2,9,5,49,11,169,? Ans:22
6) 49,7,98,16,4,48,9,3,36,25,5,?
7) 2,6,5,14,11,26,17,? Ans:60
8) 7,0,1,8,5,12,9,26,3,23,2,? Ans:28
9) 2,3,10,15,26,? Ans:35
10) 5,16,22,68,28,87,36,106,11,? Ans:45
11) 7776,625,64,9,?
12) 13,24,36,23,34,56,33,44,96,43,54,? Ans:116
13) 0,1,2,0.5,2,2,2,2,4,3,2,? Ans:3.5
14) 18,24,5,21,27,8,17,23,4,24,30,? Ans:9
15) 3,5,2,100,4,7,3,196,1,6,5,? Ans:144
16) 8,5,9,7,2,25,5,1,16,8,6,? Ans:15
17)-3,6,1,-2,4,-1,-1,2,-3,?
18)1/4,1/4,1/2,3/2,6,? Ans:30
19) 8,0.5,16,4,15,0.3,50,4.5,6,0.2,30,?
20) 9,4,16,6,36,21,441,? Ans:421
21) 4,2,5,9,5,11,13,7,16,17,9,?
22) 33,8,41,46,21,67,72,47,119,124,?
23) 3,2,1,4,5,4,1,0,6,3,?
24) 30.5,31,30,0,67.2,67,70,100,183.9?
25) 48,24,35,7,16,8,75,15,80,40,?
26) 1.8,3,0,6,2.5,5,0.5,3.4,2,1.7,4.8,6,? Ans=0.8
27) 1370,1320,1070,-180,?
28) 9,3,24,4,9,3,36,6,9,3,30,?
29) 52,62,42,78,89,68,49,61,39,63,76,?
30) -16,-8,4,24,12,-6,-40,?
31) 49,6,25,4,36,5,81,5,?
32) 9,3,6,21,9,12,33,15,18,?
33) 12,3,15,14,6,19,9,23,18,12,?
34) -15,-14,34,32,-42,-39,58,54,-61,?
35) 38,36,76,35,114,34,?
36) 30.5,31,30,0,67.2,67,70,100,183.9,?
37) 11,8,17,14,23,24,31,32,?
38) 10,12,-36,-7,-5,15,19,21,?
39) 44,4.4,0.88,0.264,0.1056,?
40) 11.5,17.5,35.5,89.5,?
41) 2,3,10,15,26,35,50,?
42) 1/3,1/2,1/4,2 1/3,3 1/2, 4 1/4, 4 1/3, 6 1/2,?
43) 1.25,3,7.1,1.5,1,8.1,1.75,-1,9.1,0.75,2. 00
44) 5,1,2,8,1,0,9,2,3,14,1.3,2,?
45) 1 ,3 ,1 ,2.5 ,5 ,1 ,4 ,5 ,4 ,8 ,7
46) 41.45 ,41.5 ,42 ,18.23 ,18.2 ,18
47) 11 ,8 ,17 ,14 ,23 ,24 ,31 ,32
48) 4 ,3 ,144 ,1.5 ,2 ,9 ,3.2 ,2
49) 4.2 ,7.2 ,11.4 ,6.1 , 9.1 , 15.2 ,3.8 , 6.8
50) 1/5 , 1/2 , 1/3 , 2/5 ,1, 2/3, 3/5, 1 1/2 ,1, 4/5
51) 5, 1, 2, 8, 8, 1, 0, 9, 9, 2, 3
52) 5, 1, 2, 8, 1, 0, 9, 2, 3, 14, 1, 3
53) 6, 3, 3, 9, 12, 5, 7, 35, 8, 6, 2
54) 24, 42, 1/2, 2, 65, 56, 1 1/5, 5/6, 73, 37
55) 4, 2, 5, 9, 5, 11, 13, 7, 16, 17, 9
56) 8, 16, 3, 27, 4, 8, 7, 19, 2, 0, 7
57) 5/6, 1/3, 1/2, 1/2, 2/8, 1/4, 5/6, 1/6, 2/3, 1/2, 1/3
58) 115, 100, 86, 74, 65, 60
59) 100, 98, 95, 90, 83
60) 0, 8, 12, 26, 23
61) 7.2, 2.2, 3.2, 16, 11, 12, 60, 55, 56
62) 18, 24, 5, 21, 8, 27, 17, 23, 4, 24, 30
63) .7 , 1.2, 1.2 , 2.2 , 1.7, 3.2, 2.2, 4.2 , ?
.7+.5=1.2+.5=1.7 ans 2.7
64) 81, 9^2, 162, 49, 7^2, 98, 25, 5^2, 50, 64, 8^2 ?
81*2=162 so,ans = 64*2= 128
65) 1, 1, 2, 4 , 6, 36, 39, 1521, ?
66) 2, 3, 10, 15, 26, 35,50, ?
67) 2, 8, 3, 27, 4, 64, 5, 125, 6, 216, ?
See alternate no.s -> 2, 3, 4.ans=7
68) 2, 3, 6, 13, 28, ?
*2-1, *2+0, *2+1.ans= 28*2+3= 59
69) 38, 36, 76, 35, 114, 34, ?
Alternate -> 38+38=76 76+38=114
114+38=152 (ans)
70) 1/5, 1/2, 1/3, 2/5 , 1, 2/3,3/5, 3/2, 1, 4/5, ?
Alternate starting with 1/2 ; skip 2 and -> 1/2, 1, 3/2 , 2 (ans =2)
71) 96, 64, 128, 192, 128, 256, 288, 192, ?
Break ques like(96, 64, 128,) (192, 128, 256,) (288, 192, ?)
First*2=second set\'s numbers. First*3= third set. Ans=128*3
72) 1370, 1320, 1070, -180, ?
diffrnc-> -50, -250, -1250 -> 50*5, 250*5, next will be -1250*5
73) 3, 2, 1, 4, 5, 4, 5, 1, 0, 6, 3, 2, ?
3,( 2, 1), 4,( 5, 4), 5, (1, 0), 6, (3, ?) second term one less . so ans = 2
74) 1 1 1 2 2 2 3 4 3 3 5 6 ?
(1 1) 1 2 (2 2) 3 4 (3 3) 5 6 ? ans=4
75) 507, 169, 248, 62, 36, 12, 168, 42, 168 ?
(507= 169*3), 248, 62, (36=12*3), 168, 42, (168=x*3)-> x=56(ans)
76) 7.2, 2.2, 3.2, 16, 11, 12, 60, 55, 56, ?
7.2 + 8.8= 16+ 44= 60 + 2.2= 62.2 (ans) [not sure about answer]
77) 2, 6, 5, 14, 11, 26, 17 , ?
Alternate starting with first: +3 , +6 , +6
Now starting with second number: +8, +12 , +12 . so ans = 26+12
78) 115, 100, 86, 74, 65, 60, ?
Difference : 15, 14, 12,9, 5 Now difference of these : 1, 2, 3, 4, next 5
So 5-5=0 Ans=60-0=60
79) 8 5 9 7 2 25 5 1 16 8 6 ?
(8 -5=3 ) -> 3^2=9 (7-2=5)->5^2= 25 5 1 16 (8- 6=2) so answer 2^2=4
80) -5 1 -11 23 29 17 -20 -14 ?
-5 (1 -12=-11) 23 (29 -12=17) -20 (-14 -12=-26) ans=-26
81) 3,7,10,8,4,12,0,5,5,3,2,?
Ans:(Divide the 3 elements into one group ) 3+7=10,8+4=12,0+5=5,so 3+2=5 is the answer.
82) 0,1,1,2,0.5,2,2,4,2,2,4,3,7,2,?
83) 1,1,2,4,6,36,39,1521,?
84) 7,4,6,3,4.5,1.5,2.25,? Ans: -0.75
85) 2,9,5,49,11,169,? Ans:22
86) 49,7,98,16,4,48,9,3,36,25,5,?
87) 2,6,5,14,11,26,17,? Ans:60
88) 7,0,1,8,5,12,9,26,3,23,2,? Ans:28
89) 2,3,10,15,26,? Ans:35
90) 5,16,22,68,28,87,36,106,11,? Ans:45
91) 7776,625,64,9,?
92) 13,24,36,23,34,56,33,44,96,43,54,? Ans:116
93) 0,1,2,0.5,2,2,2,2,4,3,2,? Ans:3.5
94) 18,24,5,21,27,8,17,23,4,24,30,? Ans:9
95) 3,5,2,100,4,7,3,196,1,6,5,? Ans:144
96) 8,5,9,7,2,25,5,1,16,8,6,? Ans:15
97) -3,6,1,-2,4,-1,-1,2,-3,?
98) 1/4,1/4,1/2,3/2,6,? Ans:30
99) 1/4, 1/4, 1/2, 3/2, 6, ?
100) 0.8, 1.8, 3.6, 3.6, 4.6, 9.2, 9.2, 10.2, ?
101) 22, 19.5, 21.45, 33, 30.5, 33.55, 44, 41.5, ?
102) 15 3/4, 16, 26, 9 1/5, 9, 19, 64 2/3, 65, 75, 30 3/8, ?
103) 3, 2, 1, 4, 5, 4, 5, 1, 0, 6, 3, ?
104) 3/2, 2 1/4, 9/4, 7/2, 12 1/4, 49/4, 4/3, 1 1/7, 16/9, ?
105) 18, 24, 5, 21, 27, 8, 17, 23, 4, 24, 30, ?
106) 100, 98, 95, 90, 83, ?
107) 1, 3, 3, 2, 8, 10, 3, 4, 12, 4, 8, ?
108) 49, 7, 98, 16, 4, 48, 9, 3, 36, 25, 5, ?
109) 9, 12, 4, 8, 12, 15, 5, 9, 3, 6, 2, 6, 6, 9, ?
110) 5/6, 1/3, 1/2, 1/2, 2/8, 1/4, 5/6, 1/6, 2/3, 1/2, 1/3, ?
111) 33, 8, 41, 21, 67, 72, 47, 119, 124, ?
112) 1/7, 3/4, 4/9, 5/6, 7/11, 7/8, ?
113) 7, 4, 6, 3, 4.5, 1.5, 2.25, -0.75, ?
114) 1,2,3,6,11,20,37,68,_____
(sum of previous two+ current face value Ans=20+37+68)
115) 9,3,24,4,9,3,36,6,9,3,30,____
(pattern is x*3,x*6 Ans=5)
116) 44,4.4,.88,.264,0.1056,____
(x*.1,x*.2,x*.3.....Ans=0.5*0.1056)
117) 38,36,76,35,114,34,____
(Ans=38*4)
118) -12,6,-15,-5,28,-14,9,3,-18,____
(Ans=9)
119) 5,1,2,8,8,1,0,9,9,2,3,______
(Ans=14)
120) 56,89,33,21,57,88,35,19,60,85,30,____
(Ans=24)
121) 3,4.5,7,4,6,5.5,5,7.5,10,6,______
(Ans=9.0)
122) 7,-35,-34,-3,15,16,4,________
(Ans=-20)
123) 11,8,17,14,23,24,31,32,______
(Ans=43)
124) 1.8,3,0.6,2.5,5,0.5,3.4,2,1.7,____
(Ans=4.5)
125) 1,2,3,611,20,37,68,________
(This question got repeated for me twice same as 1)
126) 9,3,6,21,9,12,33,15,________
(Ans= 33-15)
127) -16,-8,4,24,12,-6,-40,_______
(Ans=-20)
128) 4.2,26.0,8.9,8.4,52.0,17.8,16.8,104.0,_______
(Ans=17.8*2)
129) 340,680,1428,3141.6,________
130) 7,-14,-4,15,-30,-20,-21
131) 11.5,17.5,35.5,89.5,__
132) 4,2,4,8,6,8,16,__