Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-39)

Crack IBPS Exam 2017 - Quantitative Aptitude Scoring Part (Day-39):

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”.

Direction (1-10): What approximate value should come in place of question mark (?) in the following questions?
1). 8787÷342×√50=?

1) Answer: B
? =8787÷342×√50=25.7×7=179.9≈180

2). ∛15628×(201÷8) = (?)²

2) Answer: B
(?)²=∛15628×(201÷8)
(∵∛15628≈ ∛15625≈25) ≈25×25.125≈25×25
∴ ? =√(25×25)=25

3). 7/9 of 4011.33+7/11 of 3411.22=?

3) Answer: D
? =7/9 of 4011.33+7/11 of 3411.22
≈7/9×4011+7/11×3411
≈3119.66+2170.63
≈3120+2170=5290

4). 23% of 5783+57% of 8561=?

4) Answer: B
? =23% of 5783+57% of 8561
= [(23×5783)÷100] + [(57×8561)÷100]
=1330.09+4879.77≈1330+4880=6210

5). 345.01×224.99÷ (11×5) =?

5) Answer: C
? =345.01×224.99÷ (11×5) ≈ 345×(225÷55)
=77625÷55=1411≈1410

6). 5.5% of 225+7.5% of 625-18.6% of 182=?

6). Answer: D
? =5.5% of 225+7.5% of 625-18.6% of 182
=12.375+46.875-33.852
≈12+47-34=25

7). √2.25+√6.76+√9.61+√10.89-√23.04=?

7). Answer: E
? =√2.25+√6.76+√9.61+√10.89-√23.04
=1.5+2.6+3.1+3.3-4.8
=10.5 - 4.8 ≈ 10-5=5

8). 2.26+3.86+2.96+5.89+? =4.4÷1.1×5.89

8). Answer: D
? = 4.4÷1.1×5.89-(2.26+3.86+2.96+5.89) = (4×6)-(2+4+3+6) ≈24-15=9

9). (5.96)²+ (7.89)²+ (2.9)²+ (3.1)²= (2.42)²+ (2.68)²+?

9). Answer: A
(2.42)²+ (2.68)²+? = (5.96)²+ (7.89)²+ (2.9)²+ (3.1)²≈ (6)²+ (8)²+ (3)²+ (3)²
≈36+64+9+9=118
∴ ? = 118 - {(2.42)²+(2.68)²}
= 118 - (5.86+7.18) ≈118-{6+7} =118-13=105

10). (9.1×5.7×6.72×9.5)-(1.9×2.1×3×1.7)= ?

10). Answer: C
? = (9.1×5.7×6.72×9.5)-(1.9×2.1×1.7×3)≈ 9×6×7×9.5-(2×2×2×3)
≈ 3591-24=3567≈3568

Direction (11-20): What value should come in place of question mark (?) in the following questions?
11). 572÷26×20+253-209= (22)^?

11). Answer: A
572÷26×20+253-209= (22)^?
22×20+253-209= (22)^?
484 = (22)^? --->(22)^? = (22)^2
? = 2

12). √1024 + √2304 + √9216 = ?÷ 4

12). Answer: A
32 + 48 +96 = ? ÷ 4
? = 4× 176 = 704

13). 54% of 2100 + 40% of 640 + ? = 38^2

13). Answer: C
1134 +256 + ? = 1444
1390 + ? = 1444
? = 54

14). 0.3 x 27÷0.75 x 8.1 = ? ÷0.9

14). Answer: A
0.3 x 27÷0.75 x 8.1 = ? ÷0.9
87.48 = ? ÷0.9
? = 78.732

15). (1.6)^8 x (2.56)^4 ÷ (4.096)^3 = (1.6)^?

15). Answer: A
(1.6)^8 x (2.56)^4 ÷ (4.096)^3 = (1.6)^?
(1.6)^8+8-9 ---> (1.6)^16-9
= 1.6^7
? = 7

16). 672÷24×18+153-345= ?

16). Answer: C
672÷24×18+153-345
504+153-345 = 312

17). 67.39 -11.78 + 19.63 =? + 22.41

17). Answer : B
67.39 -11.78 + 19.63 =?+ 22.41
? = 75.24 – 22.41 ---> 52.83

18). 44% of 125 + 75% of 840 = ?

18). Answer : C
? = 44% of 125 + 75% of 840 = 55+630 = 685

19). 1.2 x 0.9÷0.25 x 24 = ?

19). Answer : D
? = 1.2 x 0.9÷0.25 x 24 = 103.68

20). (1.1)^5 x (1.21)^3 ÷ 1.331 = (1.1)^?

20). Answer : C
(1.1)^5x (1.21)^3 ÷ 1.331
(1.1)^5+6-3 = 8 = (1.1)^8
? = 8

Direction (21 – 25): What will come in place of (?) in the following number series.
21). 5, 4, 10, 27, ?, 555

21). Answer: D
The series is,
5 * 1 – 1 = 4
4 * 2 + 2 = 10
10 * 3 – 3 = 27
27 * 4 + 4 = 112…

22). 3, 5, 11, 61, 419, ?

22). Answer: C
The series is,
3 * 1 + 2 = 5
5 * 3 – 4 = 11
11 * 5 + 6 = 61…..

23). 3, 2, 12, ?, 20144

23). Answer: B
The series is,
(3 * 1³) – 1² = 2
(2 * 2³) – 2² = 12
(12 * 3³) – 3² = 315…..

24). 52, 54, 28, 30, ?, 18, 10

24). Answer: B
The series is
52 / 1 + 2 = 54
54 / 2 + 1 = 28
28 / 1 + 2 = 30…..

25). 5, 261, 389, ?, 485, 501

25). Answer: A
The series is,
5 + 8 * 32 = 261
261 + 8 * 16 = 389
389 + 8 * 8 = 453….

Direction (26-30): In each of these questions, two equations I & 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 cannot be established
26). I.3X^2 – 19X + 28= 0
II.4Y^2 – 29Y + 45 = 0

26). Answer: E
(x-4)(3x-7) =0
X=4,7/3
(y-5)(4y-9) =0
Y=5,9/4
Hence, relation cannot be established

27). I.X^2 = 5625
II.Y = 3√421875

27). Answer: D
X=±75
Y =75
Hence, x ≤ y

28). I.8X^2 + 22X + 15= 0
II.4Y^2 + 16Y + 15 = 0

28). Answer: C
(4x+5)(2x+3) =0
X=-5/4, -3/2
(2y+5)(2xy+3) =0
y=-5/2, -3/2
Therefore x ≥ y

29). I.8X^2 + 10X + 3= 0
II.5Y^2 – 8Y + 3 = 0

29). Answer: B
(2X+1)(4X+3) =0
X= -1/2, -3/4
(5Y-3)(Y-1) =0
Y=1, 3/5
Therefore, x < y

30). I.3X + 2Y – 9= 0
II.4X – 15Y – 65 = 0

30). Answer: A
45X+30Y = 135
8X-30Y=130
53X=265
X=5, Y= -3
Therefore, y < x

       

Let's block ads! (Why?)

- http://feedproxy.google.com/~r/blogspot/VyQLQ/~3/INbNu39fA-o/crack-ibps-exam-2017-quantitative-aptitude-scoring-part-day-39.html