Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-6)

Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-6):

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.

Direction (1-10): What value should come in place of question mark (?) in the following questions? 1). 144.8% of 1339 + 42.02 × 18.484 = ?

1). Answer: d)
? = 145 × 1340 / 100 + 42 × 18.5
= 1943 + 777
= 2720

2. (3740 ÷ 20.99) × 4.49 = ?

2). Answer: b)
? ≈ 3740 / 21 × 4.5
? ≈ 178 × 4.5 = 801.42 ≈ 800

3. (2259.6 / 38.96 × √2020) × 1.24 = ?

3). Answer: c)
? ≈ (2260 / 39 × √2020) × 1.25
≈ (57.948 × 44.94) × 1.25
= (58 × 45) × 1.25
= 3262.5 ≈ 3260

4. 184.9% of 749.998 - 114.98% of 839.8 = ?

4). Answer: a)
? = 185 × 750 / 100 – 115 × 840 / 100
= 1387.5 - 966 = 421.5 ≈ 420

5. √24333 - 11.99 × 2.987 = ?

5). Answer: c)
? ≈ 156 - 12 × 3 = 156 - 36 = 120

6. (139.93 × 24.102) - (27.89 × 7.53) = ?

6). Answer: d)
? = (140 × 24) - (28 × 7.5)
= 3360 - 210 = 3150

7. (3248% of 55.055) ÷ 27.98 = ?

7). Answer: c)
(3248× 55/100) ÷ 28 = 3248×55/ 2800
= 63.8 ≈ 64

8. √10600 × 3√19680 = ?

8). Answer: a)
(103)^2 = 10609
√10600 = 103
(27)^3 = 19683
∛19680 = 27
? = 103 × 27 = 2781 ≈2780

9. 6844 ÷ √3360 + 255.65 ÷ 7.98 = ?

9). Answer: c)
(58)^2 = 3364
√3360≈ 58
6844/58 + 256/8 = 118 + 32 = 150

10. (248% of 17855) ÷ 23.98 = ?

10). Answer: e)
(248 × 17855 /100) ÷ 24 = 44280.4 / 24 ≈ 1845

Direction (11-20): What approximate value should come in place of question mark (?) in the following questions?
11. 3 2/5 × 7 5/8 ÷ 2 1/3 × 3 1/2 × 3 1/5 = ?

11). Answer: d)
(17× 61× 3 × 7 ×16) / (5× 8 × 7 × 2 × 5) = 3111/25
=124.44

12. 77.8 × 0.8 × ? = 964.72

12). Answer: c)
? = 964.72/ (77.8 × 0.8)
? = 15.5

13. √17.64 ×√14.0625 = √0.0225 × ?

13). Answer: a)
? × 0.15 = 4.2 × 3.75
? = 15.75 / 0.15 = 105

14. 7/15 of 5/27 of 45% of 1593 = 2.1× ?

14). Answer: a)
7× 5 ×45 ×1593/ (15 ×27 ×100× 2.1) = 29.5

15.– (357.911)^(2/3) × (50.41)^(3/2) = (7.1)^?

15). Answer: a)
(7.1)^? = (7.1)^2 × (7.1)^3
(7.1)^? = (7.1)^5
? = 5

16. √? =(153 × 46) ÷ 18

16). Answer: c)
√? = 153 × 46 / 18 = 391
? = (391)^2 = 152881

17. (3834 ÷ 27) × (3920 ÷ 112) = ?

17).Answer: e)
? = (3834/27) * (3920/112) = 142*35
? = 4970

18. 2.8% of 1220 + 7.4% of 780 = ?

18). Answer: b)
? = (2.8 × 1220/100) + (7.4 ×780/100)
? = 34.16 + 57.72 = 91.88

19. 0.6 × 2.8 × 3.5 ÷ 0.0049 = ?

19). Answer: d)
? = 0.6 ×2.8× 3.5 / 0.0049
? = 5.88 / 0.0049 = 1200

20. 30% of √15625 + 70% of 3√3375 = ?

20). Answer: a)
? = 30/100 * 125 + 70/100 × 15
? = 37.5 + 10.5 = 48

Direction (21 – 25): What value should come in place of the question mark (?) in the following number series?21. 11, 20, 38, 74, ?

21). Answer: e)
The series is,
11 + 9 = 20;
20 + 18 = 38;
38 + 36 = 74;
74 + 72 = 146

22. 11, 13 , 20 , 48 , 111 , ?

22). Answer: a)
The series is,
11 + (1^3 + 1) = 11 + 3 = 13;
13 + (2^3 - 1) = 13 + 7 = 20;
20 + (3^3 + 1) = 20 + 28 = 48;
48 + (4^3 - 1) = 48 + 63 = 111;
111 + (5^3 + 1) = 111 + 126 = 237

23. 13 , 17 , 33 , 97 , ? , 1377

23). Answer: e)
The difference between the numbers is +4, +16, +64, +256, …

24. 15, 21 , 38 , 65 , 101 , ?

24). Answer: d)
The difference of difference of the series is, +11, +10, +9, +8, ….

25. 7, 16, 45 ,184 , 915 , ?

25).Answer: b)
The series is,
7 x 2 + 2 = 16;
16 x 3 - 3 = 45;
45 x 4 + 4 = 184;
184 x 5 - 5 = 915;
915 x 6 + 6 = 5496

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) x < y
b) x > y
c) x ≥ y
d) x ≤ y
e) x = y or the relationship cannot be established.

26. I. 20x^2 - 31x + 12 = 0
II. 20y^2 + y - 12 = 0

26). Answer: c)
I. 20 x^2 – 31 x + 12 = 0
(4 x - 3) (5x – 4) = 0
x = (3/4), (4/5)
II. 20y^2 + y – 12 = 0
or, (4y – 3) (5y + 4) = 0
y = (3/4), (-4/5)
Hence x ≥ y

27. I. 2x^2 - 27x + 91 = 0
II. 2y^2 + y - 136 = 0

27). Answer: e)
I. 2x^2 –27x + 91 = 0
or, (x– 7) (2x – 13) = 0
x = 7, (13/2)
II. 2y^2 + y –136 = 0
or, (y – 8) (2y + 17)= 0
y = 8, (-17/2)

28. I. 2x -13 √x + 21 = 0
II. 2y -15 √y + 28 = 0

28). Answer: d)
I. 2x – 13√x + 21 =0
(√x – 3) ( 2√x –7) = 0
√x = 3, 7/2
x = 9, 49/4
II. 2y – 15√y + 28 =0
or, (2 √y –7) ( √y – 4) = 0
√y = 4, 7/2
y = 49/4, 16, Hence, x ≤ y

29. I. x^2 = 3136
II. y^2 = 1764

29). Answer: e)
I. x^2 = 3136
x = ±56
II. y^2 = 1764
y = ±42

30.I. x^2 - 20x + 91 = 0
II. y^2 - 6y - 91 = 0

30). Answer: e)
I. x^2 – 20 x + 91 = 0
(x –7) (x – 13)= 0
x = 7, 13
II. y^2 – 6 y – 91 = 0
(y –13) (y + 7) = 0
y = 13, –7

       

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