Aptitude Questions: Number Series Set 48

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Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series, which is common for SBI, IBPS, RBI, IPPB, LIC, SSC and other competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

1. 79, 152, 88, 142, 99, 130 ?
   1.112
   2.121
   3.101
   4.87
   5.None of these
   
   Answer & Explanation

   Answer – 1.112
   Explanation :
   79+9 =88        152-10 = 142
   88+11 = 99     142-12 = 130
   99+13 = 112
   
   
   
2. 17, 22, 41, ?, 373
   1.120
   2.96
   3.82
   4.110
   5.None of these
   
   Answer & Explanation

   Answer – 4.110
   Explanation :
   17+2^2+1 = 22
   22+4^2+3 = 41
   41+8^2+5=110
   110+16^2+7 = 373
   
   
   
3. 206, 219, 240, 269, ?
   1.319
   2.283
   3.306
   4.354
   5.None of these
   
   Answer & Explanation

   Answer – 3.306
   Explanation :
   206+13 = 219
   219+21(13+8) = 240
   240+ 29(13+16) = 269
   269+37(13+24) = 306
   
   
   
4. 5, 20, 130, 1155 , ?
   1.13545
   2.10656
   3.11565
   4.12685
   5.None of these
   
   Answer & Explanation

   Answer – 4.12685
   Explanation :
   5*5-5 = 20
   20*7-10 = 130
   130*9-15 = 1155
   1155*11 – 20 = 12685
   
   
   
5. 86, 46, 32,?, 36.5
   1.39
   2.30
   3.31
   4.29
   5.None of these
   
   Answer & Explanation

   Answer – 3.31
   Explanation :
   86*0.5+(3*1) = 46
   46*0.5+(3*3) = 32
   32*0.5+(3*5) = 31
   31*0.5+(3*7) = 36.5
   
   
   
6. 2, 2, 6, 30, 244, ?
   1.987
   2.2125
   3.1280
   4.3055
   5.None of these
   
   Answer & Explanation

   Answer – 4.3055
   Explanation :
   2*0.5*1+1 = 2
   2*1*2+2 = 6
   6*1.5*3+3 = 30
   30*2*4+4 = 244
   244*2.5*5+5 =3055
   
   
   
7. 650, 1302, ?, 5256, 10640
   1.2612
   2.3212
   3.2515
   4.2416
   5.None of these
   
   Answer & Explanation

   Answer – 1.2612
   Explanation :
   650/0.5 +2 = 1302
   1302/0.5+8 = 2612
   2612/0.5+32 = 5256
   5256/0.5+128 = 10640
   
   
   
8. 97, 99, ?, 142.5, 27.625, 148.125
   1.76
   2.45.5
   3.102.5
   4.59
   5.None of these
   
   Answer & Explanation

   Answer – 2.45.5
   Explanation :
   97*1+2 = 99
   99/2-4 = 45.5
   45.5*3+6 = 142.5
   142.5/4-8 = 27.625
   27.625*5+10 = 148.125
   
   
   
9. 12, 6.6. 9.96, ?, 33.55
   1.17.96
   2.21.45
   3.18.75
   4.20.05
   5.None of these
   
   Answer & Explanation

   Answer – 1.17.96
   Explanation :
   12*0.3+3 = 6.6
   6.6*0.6+6 = 9.96
   9.96*0.9+9 = 17.96
   17.96*1.2+12 = 33.55
   
   
   
10. ?, 167, 189, 222, 266, 321
    1.117
    2.176
    3.156
    4.101
    5.None of these
    
    Answer & Explanation

    Answer – 3.156
    Explanation :
    156+11 = 167
    167+22 =189
    189+33 =222
    222+44 = 266
    266+55 = 321