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Quants Questions : Number Series Set 10

Hello Aspirants. Welcome to Online Quantitative Aptitude Section in AffairsCloud.com. Here we are creating question sample in Number Series, which is common for all the competitive exams. We have included Some questions that are repeatedly asked in bank exams !!!

  1. 63, 66, 138, 423, 1704
    34, a, b, c, d…Find the value of C
    A)327
    B)80
    C)249
    D)256
    C)249
    Explanation :
    63*1+3 = 66          34*1+3 = 37
    66*2+6 = 138        37*2+6 = 80
    138*3+9 = 423       80*3+9 = 249
    423*4+12 = 1704

  2. 173, 86.5, 216.25, 72.08,252.3
    234,p,q,r,s,t……..Find the value of Q
    A)237.8
    B)292.5
    C)342.9
    D)126.8
    B)292.5
    Explanation :
    173÷2 = 86.5               234÷2 = 117
    86.5*2.5 = 216.25       117*2.5 = 292.5
    216.25÷3 = 72.08
    72.08*3.5 = 252.3

  3. 564, 221, 437, 312…
    1234,m,n,o,p……..Find the value of O
    A)876
    B)956
    C)1029
    D)918
    D)918
    Explanation :
    564 – 343 = 221……1234 – 343 = 891
    221+ 216 = 437           891+216 = 1107
    437 – 125 = 312       1107 – 125 = 982
    982 – 64 = 918

  4. 132,182,240, 306
    992,a,b,c,d…..Find the value of c
    A)1879
    B)1290
    C)1450
    D)1260
    D)1260
    Explanation :
    121+11 = 132              961+31 = 992
    169+13 = 182              1089+33 = 1122
    225+15 = 240              1225+35 = 1260
    289+17 = 306

  5. 987, 207.4, 2069, 423.8…….
    145,l,k,j…..Find the value of l
    A)45
    B)39
    C)289
    D)165
    B)39
    Explanation :
    987÷5+10 = 207.4                  145÷5+10 = 39
    207.4*10-5 = 2069
    2069÷5+10 = 423.8

  6. 5, 7.5, 22.5, 101.25
    93,a,b,c,d……..Find the value of d
    A)1289.6
    B)1578.5
    C)1987.6
    D)1883.25
    D)1883.25
    Explanation :
    5*1.5 = 7.5                  93*1.5 = 139.5
    7.5*3 = 22.5                139.5*3 = 418.5
    22.5*4.5 = 101.25       418.5*4.5 = 1883.25

  7. 216, 215,214,210,202
    63,r,s,t,u,….Find the value of U
    A)83
    B)90
    C)49
    D)57
    C)49
    Explanation :
    216 – 1^2 = 215          63 -1^2 = 62
    215 -1^3 = 214           62-1^3 = 61
    214 -2^2 = 210           61-2^2 = 57
    210 -2^8 = 202           57 – 2^3 = 49

  8. 7,7,14,42,126,252,252
    123,u,v,w,x,y,z…..Find the value of x
    A)2865
    B)1654
    C)3245
    D)2214
    D)2214
    Explanation :
    7*1 = 7            123*1 = 123
    7*2 = 14          123*2 = 246
    14*3 = 42        246*3 = 738
    42*3 = 126      738*3 = 2214
    126*2 = 252
    252*1 = 252

  9. 147,153,165,189,237
    652,a,b,c,d…….find the value of d
    A)954
    B)742
    C)987
    D)876
    B)742
    Explanation :
    147+6 = 153    652+6 = 658
    153+12 = 165  658+12 =670
    165+24 =189   670+ 24 = 694
    189+48 =237   694+48 = 742

  10. 754,564,190,543,327,216
    189,a,78,145,65,b…………find the value of a
    A)111
    B)123
    C)134
    D)254
    A)111
    Explanation :
    754 – 564 = 190          189-78 = 111
    543 – 327 = 216