Dear Aspirants, Our IBPS Guide team is providing new series of Quantitative Aptitude Questions for IBPS RRB Clerk Mains 2019 so the aspirants can practice it on a daily basis. These questions are framed by our skilled experts after understanding your needs thoroughly. Aspirants can practice these new series questions daily to familiarize with the exact exam pattern and make your preparation effective.
Wrong number series
Directions (01-05): Find out the wrong number in the following number series.
1) 13, 22, 60, 236, 1150, 6888
A.22
B.1150
C.236
D.6888
E.60
2) 28, 42, 216, 1785, 21420
A.28
B.21420
C.1785
D.42
E.216
3) 23, 25, 49, 61, 189, 211
A.189
B.25
C.61
D.211
E.49
4) 11, 24, 51, 93, 156, 226
A.93
B.320
C.156
D.226
E.51
5) 115, 66, 130, 49, 169, 28
A.66
B.28
C.130
D.169
E.49
Quadratic equation
Directions (06-10): Following question contains two equations as I and II. You have to solve both equations and determine the relationship between them and give answer as,
6) I) 2x2 – 44x + 240 = 0
II) 4y2– 48y + 44 = 0
A.x > y
B.x ≥ y
C.x = y or relationship can’t be determined.
D.x < y
E.x ≤ y
7) I)Â (x + 2)! = 42 * x!
II) y2+ 4y – 32 = 0
A.x > y
B.x ≥ y
C.x = y or relationship can’t be determined.
D.x < y
E.x ≤ y
8) I) 18x2 – 117x + 180 = 0
II)6y2– 27y + 30 = 0
A.x > y
B.x ≥ y
C.x = y or relationship can’t be determined.
D.x < y
E.x ≤ y
9) I) 32x2 – 48x + 16 = 0
II)2y2– 12y + 16 = 0
A.x > y
B.x ≥ y
C.x = y or relationship can’t be determined.
D.x < y
E.x ≤ y
10) I)Â x2Â + 74x + 1333 = 0
II)Â y2+ 89y + 1978 = 0
A.x > y
B.x ≥ y
C.x = y or relationship can’t be determined.
D.x < y
E.x ≤ y
Answers :
1) Answer: C
(13 – 2) * 2 = 22
(22 – 2) * 3 = 60
(60 -2) * 4 =Â 232
(232 – 2) * 5 = 1150
(1150 – 2) * 6 = 6888
2) Answer: E
28 * 1.5 = 42
42 * 5 =Â 210
210 * 8.5 = 1785
1785 * 12 = 21420
3) Answer: A
23 + 22 – 2 = 25
25 + 33 – 3 = 49
49 + 42 – 4 = 61
61 + 53 – 5 = 181
181 + 62 – 6 = 211
4) Answer: C
11 + 13 = 24
24 + 13 + 14 = 51
51 + 13 + 14 + 15 = 93
93 + 13 + 14 + 15 + 16 =Â 151
151 + 13 + 14 + 15 + 16 + 17 = 226
5) Answer: D
115 – 72 = 66
66 + 82Â = 130
130 – 92 = 49
49 + 102Â =Â 149
149 – 112 = 28
6) Answer: C
2x2 – 44x + 240 = 0
2x2 – 20x – 24x + 240 = 0
2x(x – 10) – 24(x – 10) = 0
(2x – 24)(x – 10) = 0
x = 12, 10
4y2 – 48y + 44 = 0
4y2 – 44y – 4y + 44 = 0
4y(y – 11) – 4(y – 11) = 0
(4y – 4)(y – 11) = 0
y = 1, 11
Relationship between x and y cannot be established.
7) Answer: C
(x + 2)! = 42 * x!
(x + 2) * (x + 1) * x! = 42 * x!
x2Â + x + 2x + 2 = 42
x2Â + 3x – 40 = 0
x2 + 8x – 5x – 40 = 0
x(x + 8) – 5(x + 8) = 0
(x – 5)(x + 8) = 0
x = 5, -8
y2 + 4y – 32 = 0
y2 + 8y – 4y – 32 = 0
y(y + 8) – 4(y + 8) = 0
(y – 4)(y + 8) = 0
y = 4, -8
Relationship between x and y cannot be established.
8) Answer: B
18x2 – 117x + 180 = 0
18x2 – 72x – 45x + 180 = 0
18x(x – 4) – 45(x – 4) = 0
(18x – 45)(x – 4) = 0
x = 2.5, 4
6y2 – 27y + 30 = 0
6y2 – 12y – 15y + 30 = 0
6y(y – 2) – 15(y – 2) = 0
(6y – 15)(y – 2) = 0
y = 2, 2.5
x ≥ y
9) Answer: D
32x2 – 48x + 16 = 0
32x2 – 32x – 16x + 16 = 0
32x(x – 1) – 16(x – 1) = 0
(32x – 16)(x – 1) = 0
x = 1, 0.5
2y2 – 12y + 16 = 0
2y2 – 8y – 4y + 16 = 0
2y(y – 4) – 4(y – 4) = 0
(2y – 4)(y – 4) = 0
y = 2, 4
x < y
10) Answer: B
x2Â + 74x + 1333 = 0
x2Â + 43x + 31x + 1333 = 0
x(x + 43) + 31(x + 43) = 0
(x + 31)(x + 43) = 0
x = -31, -43
y2Â + 89y + 1978 = 0
y2Â + 43y + 46y + 1978 = 0
y(y + 43) + 46(y + 43) = 0
(y + 46)(y + 43) = 0
y = -46, -43
x ≥ y
