APTITUDE : NUMBER SERIES SET – 101

Dear Bankersdaily Aspirant,

Try to solve this number series questions in five minutes.

1) 3    4        10      33      ?        685    4116

(a)  123

(b) 147

(c) 136

(d) 156

(e) 198

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Explanation: (c) 136

3×1+1=4,

4×2+2=10,

10×3+3=33,

33×4+4=136

2)  11   6      7        16      68      ?

(a) 221

(b) 332

(c) 552

(d) 208

(e) 435

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Explanation: (c) 552

11×0.5+0.5=6,

6×1+1=7,

7×2+2=16,

16×4+4=68,

68×8+8=552

3) 8   9    13      40      56      ?        217

(a) 123

(b) 141

(c) 154

(d) 172

(e) 181

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Explanation:  (e) 181

8+13=9,

9+22=13,

13+33=40,

40+42=56,

56+53=181

4) 12   13    9        18      2        27      ?

(a) 3

(b) -5

(c) 1

(d) -9

(e) None of these

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Explanation: (d) -9

12+12=13,

13-22=9,

9+32=18,

18-42=2,

2+52=27,

27-62=-9

5) -7    5     35      89      173    ?

(a) 346

(b) 259

(c) 293

(d) 283

(e) None of these

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Explanation: (c) 293

6) 5   7    25      ?        925    8335

(a) 224

(b) 356

(c) 510

(d) 131

(e) 241

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Explanation: (d) 131

5×1+2=7,

7×3+4=25,

25×5+6=131

7) 6    73     10      36.5      18      ?        34      9.125

(a) 17.75

(b) 22

(c) 26

(d) 18.25

(e) None of these

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Explanation: (d) 18.25

8) 67    80      ?        145    197    262

(a) 96

(b) 106

(c) 126

(d) 132

(e) None of these

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Explanation: (b) 106

67+13=80,

80+26=106,

106+39=145,

145+52=197,

197+65=262

9) 11    19      46      ?        514    1845

(a) 234

(b) 191

(c) 131

(d) 84

(e) 171

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Explanation: (e) 171

11+23=19,

19+33=46,

46+53=171,

171+73=514

10) 98    104      92      116    68      ?

(a) 164

(b) 145

(c) 153

(d) 124

(e) None of these

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Explanation: (a) 164

98+6=104,

104-12=92,

92+24=116,

116-48=68,

68+96=164