“20-20” Quantitative Aptitude | Crack SBI Clerk / IDBI Executive 2018 Day-69

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“20-20” Aptitude Questions | Crack SBI Clerk / IDBI Executive 2018 Day-69

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  1. Average age of family of 6 members is 56. Arun is the youngest in the family and his age is 11 years old. Find the average of the family just before Arun was born?
  1. 58 years
  2. 56 years
  3. 54 years
  4. 52 years
  5. None of these 
  1. The ratio of present ages of Sri and Gowtham is 2:3. Sri is 6 years younger than Rajesh. Rajesh age after 5 years is 25. Find the present ages of Sri and Gowtham?
  1. 14, 21
  2. 12, 19
  3. 16, 23
  4. 15, 22
  5. None of these 
  1. 8 men can complete a work in 12 days, 4 women can complete it in 48 days and 10 children can complete the same work in 24 days. In how many days can 10 men 4 women and 10 children complete the same work?
  1. 8
  2. 7
  3. 6
  4. 9
  5. None of these
  1. A man can row a certain distance downstream in 6 hours and return the same distance in 9 hours. If the speed of the stream is 3 km/hr find the speed of the man in still water.
  1. 25
  2. 15
  3. 20
  4. 30
  5. None of these
  1. B is eighteen years younger than A. The ratio of B’s age six years hence to C’s present age is 3:2. If at present A’s age is twice the age of C, then what was B’s age 4 years ago?
  1. 25
  2. 18
  3. 26
  4. 30
  5. None of these

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

  1. 326 × 14 – 12 × 88 + 492 =?
  1. 5607
  2. 4523
  3. 3876
  4. 5909
  5. None of these
  1. 6 3/7 of 266 + 630 = 7985 – ? – 5200
  1. 336
  2. 445
  3. 391
  4. 286
  5. None of these 
  1. 124√x + 876 = (3/4) of 840 + 742
  1. 12
  2. 18
  3. 16
  4. 14
  5. None of these 
  1. 70 % of 1680 + ? % of 1750 = 55 % of 2820 + 885
  1. 72
  2. 56
  3. 64
  4. 88
  5. None of these 
  1. 25 % of x – 2197 ÷ 13 – 375 ÷ 3 = 68
  1. 2152
  2. 1896
  3. 2984
  4. 1448
  5. None of these

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

  1. 1252, 250, 49.6, 9.52,?
  1. 5.34
  2. 1.504
  3. 3.256
  4. 2.826
  5. 4.38
  1. 256, 257, 265, 274, 338,?
  1. 363
  2. 412
  3. 394
  4. 431
  5. None of these
  1. 128, 64, 96, 240, ?
  1. 480
  2. 560
  3. 840
  4. 720
  5. 680
  1. 72, 219, 880, 4405, ?
  1. 11256
  2. 26436
  3. 18752
  4. 16872
  5. 22158
  1. 136, 150, 168, 194, 244, ?
  1. 390
  2. 316
  3. 358
  4. 412
  5. 434

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

Following bar graph shows the no of Pan Card holders (in thousands) from Delhi and Kolkata in different years.

 

  1. What is the difference between the total no of pan card holders from Delhi in the year 2013 and 2014 to that of total no of pan card holders from Kolkata in the year 2012 and 2016 together?
  1. 36000
  2. 40000
  3. 48000
  4. 52000
  5. None of these

 

  1. Total no of pan card holders from Delhi in the year 2016 is what percentage of total no of pan card holders from Kolkata in all the given years together?
  1. 31.5 %
  2. 42.9 %
  3. 27.7 %
  4. 39.3 %
  5. None of these
  1. If in the year 2017, total no of pan card holders from Delhi and Kolkata is increased by 15 % and 30 % respectively while comparing with previous year, then find the ratio between the total no of pan card holders from Delhi and Kolkata in the year 2017?
  1. 16 : 8
  2. 35 : 26
  3. 28 : 17
  4. 23 : 13
  5. None of these 
  1. The average no of pan card holders from Delhi in the year 2012, 2015 and 2016 is approximately what percentage more/less than the average no of pan card holders from Kolkata in the same year?
  1. 15 %
  2. 21 %
  3. 28 %
  4. 19 %
  5. 10 %
  1. Total no of pan card holders in Kolkata in the year 2015 is 5 % of the total population in that year. Find the total population in the year 2015?
  1. 4560000
  2. 6420000
  3. 5080000
  4. 6090000
  5. None of these

Answers:

  1. Answer c

Average age of family of 6 members = 56

Total age of family of 6 members = 56*6 = 336

Arun = 11 years

The average of the family just before Arun was born,

= > [336 – (6*11)]/5

= > (336 – 66)/5 = 270/5

= > 54

  1. Answer a

Ratio of present ages of Sri and Gowtham = 2:3 (2x, 3x)

Sri = Rajesh – 6

Rajesh age after 5 years = 25

Rajesh present age = 20

Sri = 20-6 = 14

According to the question,

2x = 14

X = 7

Gowtham’s age = 3x = 21 years

Present ages of Sri and Gowtham is, 14 and 21 years.

  1. Answer c

1 man’s 1 day’s work= 1/96

1 woman’s 1 day’s work= 1/192

1 child’s 1day’s work= 1/240

So,

Required days= (10/96+4/192+10/240)

= 5+1+2/48

= 8/48=1/6

Required days = 6 days

  1. Answer b

Speed of the man= x

Downstream speed =x + 3= x+3

Upstream speed = x-3

Let the distance be y

Given,

(x+3)*6= (x-3)* 9

=> 2x+6=3x-9

=> x= 15 kmph

  1. Answer c

Let the present age of C be x

A= 2x

B= 2x-18

After six years

2x-18+6/x= 3/2

4x-24= 3x

X= 24 years

B’s age four years ago= 2x-18-4

= 48-22= 26 years

 

Directions (Q. 6 – 10):

  1. Answer d

326 × 14 – 12 × 88 + 492 = x

4564 – 1056 + 2401 = x

5909 = x

  1. Answer b

(45/7)*266 + 630 = 7985 – x – 5200

1710 + 630 = 7985 – x – 5200

X = 7985 – 5200 – 1710 – 630

x =445

  1. Answer c

124√x + 876 = (3/4) * 840 + 742

124√x + 876 = 630 + 742

124√x + 876 = 1372

124√x = 1372 – 876

124√x = 496

√x = 4

X = 16

  1. Answer a

(70/100)*1680 + (x/100)*1750 = (55/100)*2820 + 885

1176 + 35x/2 = 1551 + 885

35x/2 = 1551 + 885 – 1176

35x/2 = 1260

X = 72

  1. Answer d

(25/100)*x – (2197/13) – (375/3) = 68

(25/100)*x = 68 + 169 + 125

(25/100)*x = 362

x = 362*(100/25)

x = 1448

 

Directions (Q. 11 – 15):

  1. Answer b

The pattern is, -2 ÷ 5

The answer is, 1.504

  1. Answer a

The pattern is, +12, +23, +32, +43, +52,..

The answer is, 363

  1. Answer c

The pattern is, *1/2, *3/2, *5/2, *7/2,..

The answer is, 840

  1. Answer b

The pattern is, *3 + 4, *4 + 4, *5 + 5, *6 + 6,..

The answer is, 26436

  1. Answer a

The difference of difference is, *2, *3, *4,..

The answer is, 390

 

Directions (Q. 16- 20)

  1. Answer b

Total no of pan card holders from Delhi in the year 2013 and 2015

= > 257000 + 189000 = 446000

Total no of pan card holders from Kolkata in the year 2012 and 2016

= > 256000 + 150000 = 406000

Required difference = 446000 – 406000 = 40000

  1. Answer c

Total no of pan card holders from Delhi in the year 2016 = 300000

Total no of pan card holders from Kolkata in all the given years

= > (256 + 145 + 278 + 254 + 150)*1000 = 1083000

Required % = (300000/1083000)*100 = 30000/1083 = 27.7 %

  1. Answer d

In the year 2017,

Total no of pan card holders from Delhi = 300*(115/100) = 345

Total no of pan card holders from Kolkata = 150*(130/100) = 195

Required ratio = 345: 195 = 23 : 13

  1. Answer a

The average no of pan card holders from Delhi in the year 2012, 2015 and 2016

= > (127000 + 132000 + 300000)/3 = 559000/3

The average no of pan card holders from Kolkata in the year 2012, 2015 and 2016

= > (256000 + 254000 + 150000)/3 = 660000/3

Required % = {[660000/3 – 559000/3] / 660000/3}*100

= > (101000/660000)*100

= >15.30 % = 15 %

  1. Answer c

Total no of pan card holders in Kolkata in the year 2015 = 254000

254000 = 5 % of total population

Total population = 254000*(100/5) = 5080000

 

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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