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

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โ20-20โ 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 theseย
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 theseย
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 Bโs age six years hence to Cโs present age is 3:2. If at present Aโs age is twice the age of C, then what was Bโs age 4 years ago?
1. 25
2. 18
3. 26
4. 30
5. None of these

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

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

Directions (Q. 11 โ 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.

ย

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

ย

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 theseย
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

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 โ (6*11)]/5

= > (336 โ 66)/5 = 270/5

= > 54

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

Sri = Rajesh โ 6

Rajesh age after 5 years = 25

Rajesh present age = 20

Sri = 20-6 = 14

According to the question,

2x = 14

X = 7

Gowthamโs age = 3x = 21 years

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

1 manโs 1 dayโs work= 1/96

1 womanโs 1 dayโs work= 1/192

1 childโs 1dayโ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

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

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

Bโs age four years ago= 2x-18-4

= 48-22= 26 years

Directions (Q. 6 โ 10):

326 ร 14 โ 12 ร 88 + 492 = x

4564 โ 1056 + 2401 = x

5909 = x

(45/7)*266 + 630 = 7985 โ x โ 5200

1710 + 630 = 7985 โ x โ 5200

X = 7985 โ 5200 โ 1710 โ 630

x =445

124โx + 876 = (3/4) * 840 + 742

124โx + 876 = 630 + 742

124โx + 876 = 1372

124โx = 1372 โ 876

124โx = 496

โx = 4

X = 16

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

1176 + 35x/2 = 1551 + 885

35x/2 = 1551 + 885 โ 1176

35x/2 = 1260

X = 72

(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 โ 15):

The pattern is, -2 รท 5

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

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

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

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

Directions (Q. 16- 20)

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 โ 406000 = 40000

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 %

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

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 %

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 โ20-20โ 11.00 AM Vocabulary (Based on The Hindu) 12.00 PM Static GK Quiz 1.00 PM English Language โ20-20โ 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 โ20-20โ 7.00 PM English Language (New Pattern Questions) 8.00 PM General / Financial Awareness Quiz 9.00 PMย