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
   
   Answer

   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
   
   Answer

   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
   
   Answer

   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
   
   Answer

   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
   
   Answer

   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
   
   Answer

   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
   
   Answer

   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
   
   Answer

   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
   
   Answer

   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
    
    Answer

    A)111
    Explanation :
    754 – 564 = 190          189-78 = 111
    543 – 327 = 216