Crack IBPS Exam 2017 – Quantitative Aptitude Scoring Part (Day-8)

    Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-1)
    Crack IBPS Exam 2017 – Quantitative Aptitude Scoring Part (Day-8):

    Dear Readers, Nowadays most of the aspirants are facing huge trouble to increase the overall marks. To score high you need to practice more and more standard questions daily. “Practice does not make perfect, Only Perfect Practice makes perfect”.


    Here in Scoring Part we are providing 10 Questions in simplification, 10 Questions in Approximation, 5 Questions in number Series and 5 Questions in Quadratic Equations, total 30 questions in 20 Minutes. By practicing these questions regularly you can increase your calculation speed and it will help you to increase your score.




    00:00:00


    Direction (1-10): What value should come in place of question mark (?) in the following questions?
    1.4950 ÷ 6 + 112 × 1.75 = ? × 2

    495.5
    510.5
    530
    560.5
    None of these

    1). Answer: b)
    ? = 1/2 [(4950 / 6) + (112 × 1.75)]
    ? = 1/2 (825 + 196)
    ? = 1021 / 2 = 510.5

    2. ³√166.375 = ?

    11.5
    8.5
    6.5
    5.5
    7.5
    2). Answer: d)
    ³√166.375 = ?
    ? = 5.5

    3. 84.25 × 144 - 512 × 7 = ? % of 1068.5

    620
    840
    780
    750
    None of these
    3). Answer: e)
    ? × 1068.5 / 100 = 12132 - 3584
    ? = 8548 × 100 / 1068.5 = 800


    4. √4096 + √13456 = 75 × ?

    2.4
    3.8
    4.2
    5.5
    6
    4). Answer: a)
    75 × ? = 64 + 116 = 180
    ? = 180 / 75 = 2.4


    5. 157% of 360 + 66% of 275 = 30% of ?

    2210
    2348
    2489
    2520
    None of these
    5).Answer: c)
    30 × ? /100 = 157 × 360 /100 + 66 × 275 / 100
    or, 30 × ? = 56520 + 18150 = 74670
    ? = 74670 / 30 = 2489


    6.[(3024 ÷ 189)^1/2 + (684 ÷ 19)^2] = (?)^2 + 459

    ± 27
    ± 29
    31
    841
    1089
    6). Answer: b)
    (16)1/2 + (36)^2 = ?^2 + 459
    or, ?^2 = 4 + 1296 - 459 = 841
    or, ? = ±29


    7. 4.4 times of 5/16 of 30% of 216 = ?

    81.9
    83.7
    87.3
    89.1
    None of these
    7). Answer: d)
    ? = 4.4 × 5/16 × 30/100 × 216
    ? = 4.4 × 5/16 × 64.8 = 89.1


    8. (0.0729 ÷ 0.1)^3 ÷ (0.081 × 10)^5 × (0.3 × 3)^5 = (0.9)^(?+3)

    1
    2
    4
    7
    None of these
    8). Answer: a)
    (0.729)^3 ÷ (0.81)^5 × (0.9)^5 = (0.9)^(? + 3)
    or, [(0.9)^3]^3 ÷ [(0.9)^2]^5 × (0.9)^5 = (0.9)^(?+3)
    or, (0.9)9 ÷ (0.9)^10 × (0.9)^5 = (0.9)?+3
    or, (0.9)^(9-10+5) = (0.9)^(?+3)
    or, (0.9)^4 = (0.9)^(?+3)
    :. ? = 1

    9. (√(?%) of √1764 × 5) = 149.8 -112

    18
    18
    324
    24
    None of these
    9). Answer: e)
    √(?/100) of 42 × 5 = 37.8
    or, √? / 10 of 42 × 5 = 37.8
    or, 4.2 √? × 5 = 37.8
    or, 21 √? = 37.8
    or, √? = 1.8
    or, ? = 3.24

    10.(27)^2 × 6 ÷ 9 + (7)^3 + 71 =(?)^3 - 431

    11
    (13)^3
    13
    (11)^2
    None of these
    10). Answer: a)
    (729 × 6 ÷ 9) + 343 + 71 + 431 = ?3
    or, 486 + 343 + 71 + 431 = ?3
    or, ?^3 = 1331 = (11)3
    :. ? = 11

    Direction (11-20): What approximate value should come in place of question mark (?) in the following questions?
    11. √(√29585 + √23100) = ?

    18
    20
    16
    22
    24
    11).Answer: a) ≈
    ? ≈ √(172 +152) = √324 = 18

    12. 48.5% of 7842 + ? % of 1318 = 4515

    42
    48
    54
    57
    60
    12).Answer: c)
    1320 × ? /100 = 4515 – (48.5 × 7840 / 100)
    1320 × ? /100 ≈ 4515 - 3800 = 715
    ? = 71500 / 1320
    ? = 54.16 ≈ 54

    13.118.257 × 289.92 + 43.54 × 171.37 = ?

    41500
    41700
    41900
    42100
    42300
    13). Answer: b)
    ? ≈ 118.25 × 290 + 43.5 × 170
    ? = 34292.5 + 7395
    ? = 41687.5 ≈ 41700

    14. ³√226980 = ?

    59
    61
    63
    65
    67
    14). Answer: b)
    ? = ³√226980 ≈ 61

    15. 8847256 ÷ 4446 = ?

    1930
    1950
    1970
    1990
    2010
    15). Answer: d)
    ? ≈ 8847256 / 4446
    ? = 1989.936 ≈ 1990

    16. (838 ÷ 14.95) × 17.85 = ?

    900
    1000
    1100
    1200
    1300

    16).Answer: b)
    ? ≈ 840 / 15 × 18 = 1008 ≈ 1000

    17. ³√29790 × √1760 = ?

    1200
    1250
    1300
    1350
    1400
    17).Answer: c)
    ? ≈ 31 × 42 = 1302 ≈ 1300

    18. {555.05 ÷ 3.001 × 11.968} × 4.99 = ?

    11100
    12100
    13100
    14100
    15100
    18).Answer: a)
    ? ≈ {555 / 3 × 12} × 5
    ? = 185 × 12 × 5
    ? = 11100


    19. 1873 ÷ 84.85 + 40.81 × 16.96 = ?

    700
    720
    740
    760
    780
    19). Answer: b)
    ? ≈ 1870 / 85 + 41 × 17
    ? = 22 + 697
    ? = 719 ≈ 720


    20. 79.99% of 873 + 18.08% of 255.05 = ?

    720
    750
    790
    850
    890
    20). Answer: b)
    ? ≈ 80 × 875 /100 + 18 × 255 / 100
    ? = 700 + 45.9
    ? = 745.9 ≈ 750

    Direction (21 – 25): What value should come in place of the question mark (?) in the following number series?21. 28, 32, 23, 39, 14, ?

    30
    50
    55
    6
    14
    21). Answer: b)
    First series 28, 23, 14
    28 – 5 =23;
    23 – 9 = 14, ….
    i.e. The difference between the no. is -5, -9, -13, ….
    Second series 32, 37, ?
    32 +7 = 39;
    39 + 11 = 50
    i.e. The difference between the no. is +7, +11, +15, ….


    22. 5, 12, 33, 136, 675, ?

    5569
    4426
    5046
    4065
    4056
    22). Answer: e)
    The series is,
    5 x 2 + 2 = 12;
    12 x 3 - 3 = 33;
    33 x 4 + 4 = 136;
    136 x 5 - 5 = 675;
    675 x 6 + 6 = 4056


    23. 2, 4, 12, 4, 240, ?

    960
    1440
    1080
    1920
    None of these
    23). Answer: b)
    The series is
    2 × (2 + 0) = 4
    4 × (2 + 1) = 12
    12 × (2 + 2) = 48
    48 × (2 + 3) = 240
    240 × (2 + 4) = 240 × 6 = 1440

    24. 2, 5, 9, 19, 37, ?

    76
    74
    75
    73
    None of these
    24). Answer: c)
    The series is,
    2 × 2 + 1 = 5
    5 × 2 - 1 = 9
    9 × 2 + 1 = 19
    19 × 2 – 1 = 37
    37 × 2 + 1 = 75

    25. 4, -8, 16, -32, 64, ? .

    128
    -128
    192
    -192
    None of these
    25).Answer: b)
    First series 4, 16, 64
    4 × 4 = 16
    16 × 4 = 64
    i.e. The sequence of the series is × 4, × 4 ….
    Second series -8, -32, ?
    -8 × 4 = -32
    -32 × 4 = - 128
    i.e. The sequence of the series is × 4, × 4 ….

    Direction (26-30): In each of these questions, two equations (I) and (II) are given. You have to solve both the equations and given answer:
    a) if x< y
    b) if x> y
    c) if x ≤ y
    d) if x ≥ y
    e) if x = y, or relationship between x and y can't be established.

    26. I. 7x^2 - 33x + 20 = 0
    II. 7y^2 + 9y – 10 = 0

    a)
    b)
    c)
    d)
    e)
    26). Answer: d)
    I. 7x^2 - 33x + 20 = 0
    or, 7x^2 - 28x - 5x + 20 = 0
    or, 7x(x - 4) - 5(x —4)= 0
    or (7x - 5) (x - 4) = 0
    or, x = 4, (5/7)
    II. 7y^2 + 9y -10 = 0
    or, 7y^2 + 14y - 5y – 10 = 0
    or, 7y(y + 2) - 5(y + 2) = 0
    or, (7y - 5)(y + 2) = 0
    or, y = 5/7, -2
    Hence, x ≥ y

    27. I. 7x + 3y = 8
    II. 3x + 2y = 12

    a)
    b)
    c)
    d)
    e)
    27).Answer: a)
    I. 7x + 3y = 8
    II. 3x + 2y = 12
    Now, solving both the eqns, we get
    eqn (i) x 2 - eqn (ii) x 3
    (14x+ 6y=16) – (9x + 6y = 36)
    5x = -20
    x = -4 and y = 12
    Hence, x

    28. I. x^2 = 289
    II. y = 3√2197

    a)
    b)
    c)
    d)
    e)
    28). Answer: e)
    I. x^2 = 289
    or x = ±17
    II. y = 3√2197
    y = 13
    Hence, we can’t find a relationship between x and y.

    29. I. 8x^2 - 11x + 3 = 0
    II. y^2 - 8y + 7 = 0

    a)
    b)
    c)
    d)
    e)
    29).Answer: c)
    8x^2 -11x + 3 = 0
    or, 8x^2 - 8x - 3x +3 = 0
    or, 8x(x - 1) - 3(x - 1) = 0
    or, (8x -3)(x - 1) = 0
    or, x =1, 3/8
    II. y^2 - 8y + 7 = 0
    or, y^2 - y - 7y + 7 = 0
    or, y(y - 1) - 7(y - 1) = 0
    or, (y - 1) (y - 7) = 0
    or, y = 1, 7
    Hence, x ≤ y

    30. I. x = √1089
    II. y + y – 756 = 0

    a)
    b)
    c)
    d)
    e)
    30).Answer: b)
    I. x = √1089
    or, x = 33
    II. y^2 + y - 756 =0
    or, y^2 + 28y - 27y - 756 = 0
    or, y(y +28) - 27(y + 28) = 0
    or, (y - 27)(y + 28) = 0
    or, y= 27, -28
    Hence, x> y


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