“20-20” Quantitative Aptitude | Crack SBI PO Prelims 2018 Day-90

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“20-20” Aptitude Questions | Crack SBI PO Prelims 2018 Day-90

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Directions (Q. 1 – 5): What approximate value should come in place of question mark (?) in the following questions?

  1. 39. 98 % of 4310 + 58.79 % of 5003 =? – 3867.87
  1. 9150
  2. 7560
  3. 8540
  4. 6770
  5. 5680
  1. √11450 × √6240 – (53.96)2 = √? + (74.01)2
  1. 3364
  2. 3136
  3. 3969
  4. 3721
  5. 4225
  1. 362.98 × 290.06 – 18765.30 =? + 5883.21
  1. 80622
  2. 78546
  3. 71623
  4. 85675
  5. 91329
  1. (839.75 – 384.45) ÷ 24.01 + 786.93 =?
  1. 950
  2. 810
  3. 740
  4. 630
  5. 1120
  1. 1548.45 + 3060.95 ÷ 15.03 =? – 793.893
  1. 3180
  2. 3740
  3. 2550
  4. 2930
  5. 3560

Directions (Q. 6 – 10): What value should come in place of question mark (?) in the following number series?

  1. 36, 43, 75, 150,?
  1. 286
  2. 378
  3. 312
  4. 254
  5. 408
  1. 15, 16, 63, 568,?
  1. 5645
  2. 6892
  3. 7658
  4. 9087
  5. 8556
  1. 24, 26, 55, 169, ?, 3411
  1. 763
  2. 914
  3. 681
  4. 856
  5. 1155
  1. 147, 162, 183, 216, ? , 342
  1. 295
  2. 267
  3. 308
  4. 312
  5. 324
  1. 131, 145, 162, 182, ? , 231
  1. 205
  2. 197
  3. 212
  4. 223
  5. 188

 

  1. Rajesh borrowed Rs. 50000 from a bank at a rate of 8 % per annum for two years at simple interest and lends the same money to Moni at the rate of 8 % for two years but he charged compound interest. What is the overall gain of Rajesh?
  1. Rs. 410
  2. Rs. 370
  3. Rs. 320
  4. Rs. 430
  5. None of these
  1. In an examination, Rakesh scored 52% marks and failed by 23 marks. In the same examination, Radhika scored 64% marks and get 34 marks more than the passing marks. What is the score of Mohan in the same examination, who secured 84% marks?
  1. 356
  2. 399
  3. 415
  4. 438
  5. None of these
  1. Sree’s brother is 3 years elder to her. Sree’s father was 28 years of age when Sree’s sister was born while Sree’s mother was 26 years of age when Sree was born. If Sree’s sister was 4 years of age when Sree’s brother was born, then what was the age Sree’s father when Sree’s brother was born?
  1. 38 years
  2. 36 years
  3. 40 years
  4. 32 years
  5. None of these
  1. Pipe P and Q fill the tank in 15 min and 30 min respectively. If both the pipes are opened, after how much time Q should be closed so as to fill the tank in 11 min?
  1. 8 min
  2. 12 min
  3. 6 min
  4. 14 min
  5. None of these
  1. 12 men and 20 women can complete a piece of work in 10 days while 6 men and 15 women can complete the same work in 15 days. Then find 10 men and 15 women to complete the same work in?
  1. 15 7/8 days
  2. 11 4/7 days
  3. 12 6/7 days
  4. 14 3/8 days
  5. None of these

Directions (Q. 16 – 20) Study the following information carefully and answer the given questions:

Following table shows the no of items (In thousands) produced by 3 different companies and the ratio of sold to unsold items among them in five different years.

Year M N O
Total S: Us Total S: Us Total S: Us
2013 45 5 : 4 55 3 : 2 40 2 : 3
2014 72 3 : 1 64 3 : 1 48 1 : 3
2015 66 6 : 5 81 4 : 5 85 12 : 5
2016 48 3 : 1 49 4 : 3 75 13 : 2
2017 85 8 : 9 68 13 : 4 54 1 : 1
  1. Find the total no of items sold by Company M in all the given years together?
  1. 212500
  2. 191000
  3. 175600
  4. 234000
  5. None of these
  1. Find the ratio between the total no of items which remain unsold by Company N in the year 2014, 2016 and 2017 together to that of total no of items sold by Company O in the year 2013 and 2015 together?
  1. 28: 65
  2. 37: 68
  3. 53: 76
  4. 62: 85
  5. None of these
  1. Total no of items which remain unsold by Company M in the year 2015 and 2017 together is approximately what percentage of total no of items sold by Company N in the year 2014 and 2016 together?
  1. 118 %
  2. 106 %
  3. 99 %
  4. 87 %
  5. 90 %
  1. Find the difference between the average no. of items produced by company N in all the given years to that of the average no. of items produced by company O in all the given years?
  1. 3000
  2. 3500
  3. 4200
  4. 4700
  5. None of these
  1. Total no of items produced by Company M in the year 2015 and 2017 is what percentage of more/less than the total no of items produced by Company N in the same year?
  1. 3.45 %
  2. 5.78 %
  3. 7.23 %
  4. 1.34 %
  5. None of these

Answers:

1. Answer c

40 % of 4300 + 59 % of 5000 = x – 3868

(40/100)*4300 + (59/100)*5000 + 3868 = x

X = 1720 + 2950 + 3868

X = 8538 = 8540

2. Answer d

√11449 × √6241 – (53.96)2 = √? + (74.01)2

107 * 79 – 542 – 742 = √x

8453 – 2916 – 5476 = √x

61 = √x

X = 612 = 3721

3. Answer a

363 * 290 – 18765 – 5883 = x

X = 105270 – 24648 = 80622

4. Answer b

(840 – 384)/24 + 787 = x

X = 456/24 + 787

X = 20 + 787 = 807 = 810

5. Answer c

1548 + 3060/15 = x – 794

1548 + 204 + 794 = x

X = 2546 = 2550

Direction (6-10):

6. Answer a

The pattern is, +(32 – 2), +(62 – 4), +(92 – 6), +(122 – 8),..

The answer is, 286

7. Answer d

The pattern is, *12 + 1, *22 – 1, *32 + 1, *42 – 1,..

The answer is, 9087

8. Answer c

The pattern is, *1 + 2, *2 +3, *3 +4, *4 +5, *5 +6…

The answer is, 681

9. Answer b

147             162             183             216             ?                  342

15               21               33               51               75

6                 12               18               24

The difference of difference is, 6, 12, 18, 24…

The answer is, 267

10. Answer a

The pattern is, + [(3*5) – 1], + [(3*6) – 1], + [(3*7) – 1], + [(3*8) – 1],..

The answer is, 205

(Or)

131             145             162             182             ?                  231

14               17               20               23               26

3                 3                 3                 3

The answer is 205

 

11. Answer c

Here gain is the difference between simple interest and compound interest.

Difference = Sum*(r/100)2

= > 50000*(8/100)2

= > 50000*(64/10000)

= > 64*5

Overall gain = Rs. 320

12. Answer b

Here passing marks equal, so,

= > 52 % of total marks + 23 = 64 % of total marks – 34

= > 23 + 34 = (64 – 52) % of total marks

= > 57 = 12 % of total marks

= > Total marks = 57*(100/12) = 475

Mohan’s mark = (84/100)*475 = 399

13. Answer d

Let Sree age be x

Then

Sree’s brother age = x + 3

Sree’s mother age = x + 26

Sree’s sister age = (x + 3) + 4 = x + 7

Sree’s father age = (x + 7) + 28 = x + 35

Age of Sree’s father when Sree’s brother was born = x + 35 – (x + 3) = 32 years

14. Answer a

Pipe P and Q’s one min work = (1/15) + (1/30) = (1/10)

After x min pipe Q closed, so,

11/15 +x/30 = 1

22+x=30

8 = x

After 8 min, Pipe Q is closed.

15. Answer c

Here work equal. So,

(12m+20w)*10= (6m+15w)*15

120m + 200w= 90m + 225w

30m = 25w

m /w=5/6

m = (5/6)*w

12m + 20w = 12*(5/6)w + 20w = 10w + 20w = 30 w

10 m + 15w = 10*(5/6)w + 15 w = (25/3)w + 15w 70/3 w

Women      days

30               10

(70/3)                   ?

30*10 = (70/3)*x

X = 300*(3/70) = 90/7 = 12 6/7 days

 

Direction (16-20)

16. Answer b

The total no of items sold by Company M

= > 45*(5/9) + 72*(3/4) + 66*(6/11) + 48*(3/4) + 85*(8/17)

= > (25 + 54 + 36 + 36 + 40) thousand

= > 191000

17. Answer c

The total no of items which remain unsold by Company N in the year 2014, 2016 and 2017 together

= > [64*(1/4) + 49*(3/7) + 68*(4/17)] thousand

= > (16 + 21 + 16) thousand

= > 53000

The total no of items sold by Company O in the year 2013, 2015 together

= > [40*(2/5) + 85*(12/17)] thousand

= > (16 + 60) thousand

= > 76000

Required ratio = 53000: 76000 = 53: 76

18. Answer c

Total no of items which remain unsold by Company M in the year 2015 and 2017 together

= > [66*(5/11) + 85*(9/17)] thousand

= > (30 + 45) thousand

= > 75000

Total no of items sold by Company N in the year 2014 and 2016 together

= > 64*(3/4) + 49*(4/7)] thousand

= > (48 + 28) thousand

= > 76000

Required % = (75000/76000)*100 = 98.68 % = 99 %

19. Answer a

Total no. of items produced by company N in all the given years

= > (55 + 64 + 81 + 49 + 68) thousand

= > 317000

Total no. of items produced by company O in all the given years

= > (40 + 48 + 85 + 75 + 54) thousand

= > 302000

Required difference = (317000/5) – (302000/5) = 63400 – 60400 = 3000

20. Answer d

Total no of items produced by Company M in the year 2015 and 2017

= > (66 + 85) thousand = 151000

Total no of items produced by Company N in the year 2015 and 2017

= > (81 + 68) thousand = 149000

Required % = [(151000 – 149000)/149000]*100 = (2000/149000)*100

= > 1.34 % more

 

Daily Practice Test Schedule | Good Luck

Topic Daily Publishing Time
Daily News Papers & Editorials 8.00 AM
Current Affairs Quiz 9.00 AM
Logical Reasoning 10.00 AM
Quantitative Aptitude “20-20” 11.00 AM
Vocabulary (Based on The Hindu) 12.00 PM
Static GK Quiz 1.00 PM
English Language “20-20” 2.00 PM
Banking Awareness Quiz 3.00 PM
Reasoning Puzzles & Seating 4.00 PM
Daily Current Affairs Updates 5.00 PM
Data Interpretation / Application Sums (Topic Wise) 6.00 PM
Reasoning Ability “20-20” 7.00 PM
English Language (New Pattern Questions) 8.00 PM
General / Financial Awareness Quiz 9.00 PM 

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