“20-20” Quantitative Aptitude | Crack SBI Clerk 2018 Day-86

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“20-20” Aptitude Questions | Crack SBI Clerk 2018 Day-86

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

  1. ? % of (√527.86) × 40.01 – 729.81 = 470
  1. 155
  2. 105
  3. 130
  4. 80
  5. 175

 

  1. 3943 ÷ 17 + 37.16 × 17.01 =? + (13.21)2
  1. 692
  2. 614
  3. 728
  4. 796
  5. 554

 

  1. (736 × 14.13) ÷ √783 =? – (7.11)2
  1. 373
  2. 529
  3. 481
  4. 417
  5. 545

 

  1. 38.69 % of 998.21 + 579.01 + (18.22)2 =?
  1. 1178
  2. 1293
  3. 1382
  4. 1457
  5. 1021

 

  1. (26/7) of [7832 – 2365] + 587.12 =? + 4218.21
  1. 12340
  2. 14525
  3. 16675
  4. 13790
  5. 15270

 

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

  1. 344, 172.5, 173.5, 349,? , 11208
  1. 1400
  2. 896
  3. 928
  4. 1244
  5. 1578

 

  1. 176, 48, 196, 53, ? , 58
  1. 226
  2. 218
  3. 246
  4. 216
  5. 238

 

  1. 399, 414, 431, 452, 479, ?
  1. 536
  2. 514
  3. 558
  4. 572
  5. 522

 

  1. 5, 9, 43, 251,?
  1. 1429
  2. 1353
  3. 1821
  4. 1547
  5. 1672

 

  1. 168, 181, 196, 216, ? , 293
  1. 254
  2. 267
  3. 272
  4. 235
  5. 246

 

  1. The difference between the Simple interest and Compound Interest on a certain sum for a period of 2 years is Rs. 150 at 10 % per annum. Find the sum?
  1. 18000
  2. 15000
  3. 23000
  4. 27000
  5. None of these

 

  1. If 5 men or 6 women or 8 boys can finish a work in 120 days working 8 hours a day. The no of days taken by 10 men, 6 women and 12 boys working 12 hours a day will be?
  1. 15 2/7 days
  2. 14 7/8 days
  3. 16 2/5 days
  4. 17 7/9 days
  5. None of these

 

  1. A train can cross a pole in 2 sec. It can cross another train of equal length coming from opposite direction with the speed of 42 m/s in 3 sec. Find the length (in m) of the train
  1. 252 m
  2. 275 m
  3. 214 m
  4. 236 m
  5. None of these

 

  1. P, Q, R started a business with investments of Rs. 1600, Rs. 2100 and Rs. 1500 respectively. After 8 months from the start of the business, Q and R invested additional amounts in the ratio of 3:5 respectively. If the ratio of total annual profit to R’s share in the annual profit was 3:1, then what was the additional amount invested by Q after 8 months?
  1. 1300
  2. 1100
  3. 900
  4. 700
  5. None of these

 

  1. A person purchased a mouse at Rs. x and keyboard at Rs. x+100. He sold the mouse at a profit of 20% and keyboard at a loss of 10%, and earned Rs. 70 as profit on the whole transaction then, what is the profit earned by selling the mouse?
  1. 210
  2. 160
  3. 240
  4. 260
  5. None of these

 

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

Following pie chart shows the total no of TV’s sold in different months and the table shows the ratio between the total no of TV’s sold by LG and Toshiba Company.

  1. Total no of TV’s sold in the month of Feb and June is what percentage of total no of TV’s sold in the month of Jan, March and May together?
  1. 64 7/11 %
  2. 60 3/8 %
  3. 54 6/11 %
  4. 55 5/11 %
  5. None of these

 

  1. On which month, the highest no of LG TV’s sold?
  1. Jan
  2. Apr
  3. May
  4. Feb
  5. None of these

 

  1. Find the ratio between the total no of Toshiba TV’s sold in the month of Jan, Feb and March together to that of total no of LG TV’s sold in the month of April, May and June together?
  1. 303 : 245
  2. 291 : 236
  3. 153 : 202
  4. 395 : 478
  5. None of these

 

  1. Find the difference between the total no of TV’s sold in the month of March to that of total no of LG TV’s sold in the month of Feb and May together?
  1. 5980
  2. 6550
  3. 4870
  4. 7230
  5. None of these

 

  1. Find the total no Toshiba TV’s sold in the given six months?
  1. 27890
  2. 32270
  3. 38150
  4. 29530
  5. None of these

 

Answers:

Directions (Q. 1 – 5):

  1. Answer c

(X/100)* 23 *40 – 730 = 470

(46x/5) = 470 + 730

(46x/5) = 1200

X = 1200*5/46 = 130

 

  1. Answer a

(3944/17) + 37*17 = x + 132

232 + 629 – 169 = x

X = 692

 

  1. Answer d

(736*14) ÷ √784 =? – 72

(736*14)/28 = x – 49

368 + 49 = x

X = 417

 

  1. Answer b

39 % of 1000 + 579 + 182 = x

X = 390 + 579 + 324

X = 1293

 

  1. Answer c

(26/7) of 5467 + 587 = x + 4218

20306 + 587 – 4218 = x

X = 16675

 

Directions (Q. 6 – 10):

  1. Answer a

The pattern is, *0.5 + 0.5, *1 + 1, *2 + 2, *4 + 4, *8 + 8,..

The answer is, 1400

 

  1. Answer d

The pattern is, ÷ 4 + 4, *4 + 4(alternatively)

The answer is, 216

 

  1. Answer b

The difference of difference is, 2, 4, 6, 8…

The answer is, 514

 

  1. Answer c

The pattern is, *1 + 22, *3 + 42, *5 + 62, *7 + 82

The answer is, 1821

  1. Answer e

The difference of difference is, 12 +1, 22 +1, 32 +1, 42+1,..

The answer is, 246

 

  1. Answer b

The difference between the Simple interest and Compound Interest for 2 years is,

Difference = Sum*(r/100)2

150 = Sum*(10/100)2

Sum = 150*100 = Rs. 15000

 

  1. Answer d

5 men = 6 women

6 women = 8 boys => 3 women = 4 boys

10 men and 6 women and 12 boys = 12 women + 6 women + 9 women = 27 women

Women                 days            hours

6                           120             8

27                         ?                  12

(6*120*8) = (27*? days *12)

X = (6*120*8)/(27*12) = 160/9 = 17 7/9 days

 

  1. Answer a

Let the length of the train = l m

And the speed of the train = s m/s

According to the question

l = s x 2 —– (i)

l + l = (s + 42) x 3 —– (ii)

= > 2l = (s + 42) x 3

= > 2*2s = 3s + 126

= > 4s – 3s = 126

= > s = 126 m/s

l = 126 x 2 = 252 m

 

  1. Answer c

Let the ratio additional amount of Q and R be 3x and 5x

The ratio of profit of A: B: C

= [1600*12]: [2100*8 + (2100+3x) *4]: [1500*8 + (1500 + 5x) *4]

= 19200: (16800+ 8400+12x): (12000+ 6000+ 20x)

The ratio of total annual profit to R’s share = 3: 1

(62400+ 32x)/(18000+20x) = 3/1

= > 32x + 62400 = 60x+ 54000

= > 28x= 8400

= > x = 300

So, Q’s investment after 8 months = 3x = 3*300 = Rs. 900

 

  1. Answer b

Profit of mouse = x*20/100 = 20x/100

Loss of keyboard = (x+100) * 10/100

Overall profit = 20x/100 – (x+100)*10/100 = 70

20x-10x – 1000 =7000

=>10x =8000 => x= 800

Profit of mouse = 800*20/100 = Rs.160

 

Directions (Q. 16 – 20)

 

  1. Answer c

Required % = [(22 + 8) * (75000/100) / (19+12+24) (75000/100)]*100

= > (30/55)*100

= > 54 6/11 %

 

  1. Answer d

LG TV’s are,

Jan = 75000*(19/100)*(3/5) = 8550

Feb = 75000*(22/100)*(7/10) = 11550

Mar = 75000*(12/100)*(1/2) = 4500

Apr = 75000*(15/100)*(5/9) = 6250

May = 75000*(24/100)*(2/9) = 4000

June = 75000*(8/100)*(1/3) = 2000

The highest no of LG TV’s sold in the month of Feb.

 

  1. Answer a

The total no of Toshiba TV’s sold in the month of Jan, Feb and March together

= > 75000*(19/100)*(2/5) + 75000*(22/100)*(3/10) + 75000*(12/100)*(1/2)

= > 5700 + 4950 + 4500 = 15150

The total no of LG TV’s sold in the month of April, May and June together

= > 75000*(15/100)*(5/9) + 75000*(24/100)*(2/9) + 75000*(8/100)*(1/3)

= > 6250 + 4000 + 2000 = 12250

Required ratio = 15150: 12250 = 303: 245

 

  1. Answer b

The total no of TV’s sold in the month of March

= >75000 *(12/100)

= > 9000

The total no of LG TV’s sold in the month of Feb and May together

= > 75000*(22/100)*(7/10) + 75000*(24/100)*(2/9)

= > 11550 + 4000

= > 15550

Required difference = 15550 – 9000 = 6550

 

  1. Answer c

The total no Toshiba TV’s sold in the given six months

= > 75000*(19/100)*(2/5) + 75000*(22/100)*(3/10) + 75000*(12/100)*(1/2) +

75000*(15/100)*(4/9) + 75000*(24/100)*(7/9) + 75000*(8/100)*(2/3)

= > 5700 + 4950 + 4500 + 5000 + 14000 + 4000

= > 38150

 

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