“20-20” Quantitative Aptitude | Crack SBI Clerk / IDBI Executive 2018 Day-45

Dear Friends, SBI Clerk 2018 Notification has been released we hope you all have started your preparation. Here we have started New Series of Practice Materials specially for SBI Clerk / IDBI Executive 2018 . Aspirants those who are preparing for the exams can use this “20-20” Quantitative Aptitude Questions.

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1. Rs.2420 were divided among A, B, C so that A: B = 5: 4 and B: C = 9: 10. Then what amount will C get?

1. Rs.720
2. Rs.800
3. Rs.900
4. Rs.960
5. Rs.700 

2. The simple interest on a sum of money is 1/16 of the sum. If the number of years is equal to the rate percent per annum, then the rate percent per annum is

1. 3 1/3
2. 6 2/3
3. 2 ½
4. 7 ½
5. None of these

3. The speed of the current is 4 km/hr. A boat goes 10 km upstream and comes back to starting point in 80 min. What is the speed of the boat in still water? (In km/hr)

1. 10
2. 16
3. 14
4. 12
5. 8

4. The price of petrol is increased by 25%. By how much percent should a car owner should reduce his consumption of petrol so that the expenditure on petrol would not increase?

1. 25%
2. 50%
3. 30%
4. 20%
5. 35%

5. Out of 12 students studying in a class, 4 are from Maharashtra, 5 from Tamil Nadu and 3 from Goa. Four students are to be selected at random. What are the chances that at least one is from Tamil Nadu?

1. 92/99
2. 7/99
3. 16/77
4. 86/77
5. None of these

Direction (Q. 6-10): What will come in place of the question mark (?) in the following series?

6. 12, 13, 21, 48, 112, ?

1. 185
2. 237
3. 342
4. 174
5. None of these

7. 384, 65, 16, 9, 10,? , 25

1. 12
2. 18
3. 16
4. 14
5. None of these 

8. 18, 9.5, 8.5, 14.25, 26.5, ?

1. 45.75
2. 51.75
3. 54.75
4. 68.75
5. None of these

9. 27, 43, 68, 118,? , 397

1. 178
2. 217
3. 318
4. 351
5. None of these

10. 31, 181, 899, 3589, ?

1. 10759
2. 7891
3. 6349
4. 9343
5. None of these

Directions (Q. 11 – 15): What approximate value should come in place of question mark (?) in the following questions?

11. 13873 + 133 % of 1605 – (7/5) of 4574 = ?

1. 6740
2. 9600
3. 8500
4. 12700
5. 7200

12. 5537 + 143 × 5.96 – 76.98 × 13 + 10.11 % of 1199 =?

1. 5520
2. 3480
3. 4730
4. 6790
5. 3670

13. 6499 + 3601 × 15.13 – 8790.21 =?

1. 48720
2. 32675
3. 51725
4. 42180
5. 58300

14. (5/7) of 7006 + (6/9) of 863 – 3 2/7 of 1763 =? – 526.31

1. 642
2. 311
3. 563
4. 432
5. 712

15. 32 × (?)³ + 17.08² + 601 = 1800

1. 5
2. 8
3. 3
4. 6
5. 4

Directions (Q. 16 – 20): Study the graph carefully to answer the questions that follow:

Income (in lakh Rs.) of three companies over the years:

16. The average income per year for company A is approximately what percent of the average income per year for company C?

1. 71.6
2. 67.5
3. 148.15
4. 123.4
5. None of these

17. If the per cent profit of company A in the year 2006 was 50, what was its expenditure in that year?

1. 20 lakh
2. 25 lakh
3. 15 lakh
4. 12.5 Lakh
5. None of these

18. Income of Company A in the year 2006, 2008 and 2010 is approximately what percentage more or less than the Income of company B in the year 2005, 2007 and 2009?

1. 23 %
2. 35 %
3. 18 %
4. 29 %
5. None of these

19. What is the approximate percent increase in income of company C in year 2007 while comparing with the previous year?

1. 10%
2. 111%
3. 11%
4. 90%
5. None of these

20. If the expenditure of company B in 2007 was Rs.15 lakh, what was its percent profit in that year? (Rounded off to two digits after decimal)

1. 57.14%
2. 137.33%
3. 62.13%
4. 133.33%
5. None of these

 Answers:

1)

2. Answer c

S.I = (1 / 16) P

(1 / 16) P = (P × r × r) / 100 (Here n=r)

1 / 16 = r² / 100

r² =100/16

r = 10 / 4 = 2 ½ %

3. Answer b

Let the speed of boat be x km/hr

According to the question, 10/(x – 4) + 10/(x + 4) = 80/60

=> 10 (x + 4 + x – 4) = 4/3(x² – 16)

=> 15x = x² – 16

=>x² – 16 – 15x = 0

=> x = 16, -1

Therefore, the speed of boat in still water = 16km/hr

4. Answer d

Reduction % in consumption

= [r/ (100 + r) x 100] %

= [25/ (100 + 25) x 100]

= 20%

5. Answer a

Total probability= 12C₄

Required probability= 1- none is from Tamil Nadu

None is from Tamil Nadu,

= > 7C₄

Required probability= 1- none is from Tamil Nadu

= > 1 – (7C₄ / 12C₄)

= > 1 – (7/99)

= > 92/99

Direction (Q. 6-10):

6. Answer b

The pattern is, + (1² × 1), + (2² × 2), + (3² × 3), + (4² × 4), + (5² × 5)…

The answer is, 237

7. Answer d

The pattern is, ÷6 +1, ÷5 +3, ÷4+5, ÷3 + 7, ÷2 +9, ÷1 + 11

The answer is, 14

8. Answer d

The pattern is, *0.5 +0.5, *1 +1, *1.5 +1.5, *2 +2, *2.5+2.5….

The answer is, 68.75

9. Answer b

The difference of difference is, 3², 5², 7², 9²….

The answer is, 217

10. Answer a

The pattern is, *6 -5, *5 -6, *4 -7, *3 -8,..

The answer is, 10759

Directions (Q. 11 – 15):

11. Answer b

13873 + (133/100) * 1600 – (7/5) * 4575 = x

X = 13873 +2128 – 6405

X = 9596

X= 9600(approx)

12. Answer a

5537 + 143 × 6 – 77 × 13 + (10/100) × 1200 = x

X= 5537 + 858 – 1001 + 120

X = 5514 = 5520(approx)

13. Answer c

6500 + 3601 × 15 – 8720 =x

X = 6500 + 54015 – 8790

X = 51725

14. Answer b

(5/7) × 7007 + (6/9) × 864 – (23/7) × 1764 = x- 526

X = 5005 + 576 – 5796 + 526

X = 311

15. Answer c

32 x³ + 289 + 601 = 1800

32 x³ = 1800 – 890

32 x³ = 910

X³ = 910/32 = 28

X= 3(approx)

Directions (Q. 16 – 20):

16. Answer b

Required % = ([135/6]/[200/6]) x 100 = 67.5%

17. Answer a

Let the expenditure was x lakhs

So, 50 = 30-x/x * 100

x = 20 lakhs

18. Answer a

Income of Company A in the year 2006, 2008 and 2010

= > (30+40+15) = 85 lakhs

Income of company B in the year 2005, 2007 and 2009

= > (20+35+55) = 110 lakhs

Required % = ((110-85)/110)*100 = 22 8/11 % less = 23 %

19. Answer c

Required % = (50-45)/45 x 100 = 11.11% ≈ 11%

20. Answer d

Required % profit = (35-15)/15 x 100 = 133.33%

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