Please solve these Logical Reasoning Questions. Number Series
Answers
Answer:
21.D
22. C
23. A
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Answer:
21. D 40.5
22.C 529
23.A 24
24.D 456
25.B 27
26.D, 59
27.D 360
28.C 8
29.A145
30.A 312
Explanation:
Q21. 0.5,1.5,4.5,13.5,40.5
in this we have to see the difference between the numbers i.e. 1 , 3 , 5, 9 so the next number will be 27. and (40.5-13.5= 27)
Q22. 121,225,361, 529
here 11*11 = 121
15*15=225
19*19=361
23*23 = 529
also, the difference between 11 and 15 is 4 similarly the difference b/w 19-15 is 4. so the next possible number is 19+4 = 23.
Q.23 0, 2,8,14, 24 , 34
1*1-1 = 0
2*2-2=0
3*3-1 = 8
4*4-2= 14
5*5-1 = 24
6*6-2 = 34.
Q24. 19,2,38,3,114,4, 456
19*2 = 38
38*3= 114
114*4 = 456
Q25. 1,2,3,6,9,18, 27 , 54
1+2=3
1+2+3=6
3+6=9
3+6+9=18
9+18=27
9+18+27= 54
Q26. 4,5,9,18,34, 59
4+1*1=5
5+2*2=9
9+3*3=18
18+4*4=34
34+5*5=59
Q27. 3,6,18,72, 360
3*2=6
6*3=18
18*4=72
72*5=360
Q28. 66,36,18, 8
66= 6*6 = 36
36= 3*6 = 18
18= 1*8 = 8
Q29. 21,25,33,49,81, 145
21+4 = 25
25+4*2= 33
33+ 8*2= 49
49+ 16*2= 81
81+32*2= 145
Q30. 12,32,72,152, 312
In this we have to check the options i.e. except 312 all of them having odd numbers.
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