1)15, 18, 24, 35, 53, ?
A)63
B)80
C)74
D)98
E)None of these
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Answer B)80
15+3 = 18
18+(3+3) = 24
24+(6+5) = 35
35+(11+7) = 53
53+(18+9) = 80
2)43, 68, 168, 393, 793, ?
A)1418
B)865
C)964
D)1278
E)None of these
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Answer A)1418
43+5^2 = 68
68+10^2 = 168
168+15^2 = 393
393+20^2 = 793
793+25^2 = 1418
3)456, 232, 120, 64, 36, ?
A)8
B)30
C)22
D)12
E)None of these
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Answer C)22
456-224 = 232
232 –(224/2) = 120
120-(112/2) = 64
64-(56/2) = 36
36-(28/2) = 22
4)3, 5, 15, 65, 315, ?
A)985
B)755
C)1234
D)1565
E)None of these
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Answer D)1565
3*5-10 =15-10 =5
5*5-10 = 25-10 =15
15*5-10 = 75-10 = 65
65*5-10=325-10 = 315
315*5-10 = 1565
5)5, 7.5, 11.25, 16.87, ?
A)35.45
B)19.65
C)22.60
D)25.30
E)None of these
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Answer D)25.30
5*3/2 = 7.5
7.5*3/2 = 11.25
11.25*3/2 =16.87
16.87*3/2 = 25.30
6)3,14,58,234,938,?
A)4152
B)4110
C)3754
D)4154
E)4624
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Answer C)3754
x4+2
7)3,25,255,2545,25455, ?
A)254550
B)254555
C)254545
D)254555
E)254556
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Answer C)254545)
25=(3×10)-5
255=(25×10)+5
2545=(255×10)-5
25455=(2545×10)+5
?=(2545×10)-5 = 254545
8)4725,1050,300,120,80,?
A)40
B)160
C)120
D)110
E)60
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Answer B)160)
4725 / 4.5=1050
1050/3.5=300
300/2.5=120
120/1.5=80
80/0.5=160
9)24,48,144,576,2880,?
A)17280
B)16640
C)14400
D)20160
E)14240
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Answer A)17280
24 x 2=48
48×3=144
144×4=576
576×5=2880
10)363,795,1227,1659,2091, ?
A)2423
B)2613
C)2813
D)2513
E)2523
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Answer E)2523
+432 in every step
