# 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

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