“20-20” Quantitative Aptitude | Crack SBI Clerk Prelims 2018 Day-132

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“20-20” Aptitude Questions | Crack SBI Clerk Prelims 2018 Day-132

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

  1. √65025 ÷ 5 × 12 =? – 16005 ÷ 15
  1. 1679
  2. 1785
  3. 1842
  4. 1568
  5. None of these
  1. 56 % of 4450 + (5/13) of 7540 =?
  1. 5188
  2. 5546
  3. 5624
  4. 5392
  5. None of these
  1. ? ÷ 5 + 125 × 11 = 4288 + 5572
  1. 42425
  2. 40560
  3. 39750
  4. 37240
  5. None of these
  1. 3 3/13 of 4355 – 272 =? + 561
  1. 11360
  2. 12780
  3. 14570
  4. 15890
  5. None of these
  1. 1122 ÷ (22 % of 850) = 45 – ?
  1. 45
  2. 56
  3. 39
  4. 62
  5. None of these

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

  1. 1145, 1287, 1437, 1595, 1761, ?
  1. 1967
  2. 2013
  3. 2045
  4. 2121
  5. 1935
  1. 456, 543, 634, 741, 912, ?
  1. 1456
  2. 1339
  3. 1478
  4. 1391
  5. 1523
  1. 3000, 1508, 762, 389, ?
  1. 256.5
  2. 278
  3. 314
  4. 202.5
  5. 326
  1. 17, 9, 10, 16.5, 35, 90, ?
  1. 273
  2. 214.5
  3. 286
  4. 292
  5. 318
  1. 384, 204, 112, 64, ?
  1. 52
  2. 44
  3. 23
  4. 38
  5. 31
  1. A bag contains 3 red marbles, 6 yellow marbles and 4 green marbles. If three marbles are taken at random, than what is the probability that 2 marbles are green?
  1. 34/127
  2. 56/131
  3. 27/143
  4. 78/91
  5. None of these
  1. Two- fifth of a number is equal to three-seventh of another number. The difference of these two numbers is 18. Find the numbers?
  1. 270 and 252
  2. 256 and 238
  3. 224 and 206
  4. 312 and 294
  5. None of these
  1. Applied to a bill for Rs. 90,000, the difference between a discount of 30 % and two successive discounts of 24 % and 5 % is?
  1. 1750
  2. 1980
  3. 2140
  4. 2560
  5. None of these
  1. P and Q started a business by investing Rs. 18000 and Rs. 24000 respectively. After 5 months, P invested Rs. 2000 more. And after 4 months, Q withdraws the whole amount. Find the share of Q, if the total profit at the end of the year is Rs. 73590?
  1. 28950
  2. 27680
  3. 35640
  4. 33290
  5. None of these
  1. A shopkeeper marks his goods at 25 % above its cost price and allows a discount of 12%. How much profit/Loss percent does he make?
  1. 10 % profit
  2. 15 % loss
  3. 12 % profit
  4. 8 % loss
  5. None of these

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

Following table shows the total number of students in different colleges and the percentage of students participated in cultural events.

  Total students % of students participated in cultural
P 1500 20 %
Q 950 12 %
R 1050 14 %
S 1200 18 %
T 800 25 %

 

  1. Total number of students in college Q and T together is approximately what percentage of total number of students in college P?
  1. 128 %
  2. 117 %
  3. 135 %
  4. 150 %
  5. 104 %
  1. Find the ratio between the total number of students participated in cultural events from college R to that of college S?
  1. 36 : 58
  2. 24 : 45
  3. 58 : 37
  4. 49 : 72
  5. None of these
  1. If the ratio of girls and boys in the college Q and S is 3: 2 and 1: 1 respectively, then find the difference between the total number of boys in college Q to that of girls in college S together?
  1. 280
  2. 310
  3. 220
  4. 390
  5. None of these
  1. Find the average number of students participated in cultural events from college P and T together?
  1. 250
  2. 320
  3. 370
  4. 410
  5. None of these
  1. Find the total number of students didn’t participate any cultural events from college Q and R together?
  1. 1893
  2. 2156
  3. 2348
  4. 1739
  5. None of these

Answers:

Directions (Q. 1 – 5):

1.Answer a

 (255/5)*12 =? – (16005/15)

612 = x – 1067

X = 612 + 1067

X = 1679

2.Answer d

 (56/100)*4450 + (5/13)*7540 = x

X = 2492 + 2900

X = 5392

3.Answer a

 (x/5) + 1375 = 4288 + 5572

(x/5) = 9860 – 1375

(x/5) = 8485

X = 42425

4.Answer b

 (42/13)*4355 – 729 = x + 561

14070 -729 – 561 = x

X = 12780

5.Answer c

1122 ÷ [(22/100)*850] = 45 – x

(1122/187) = 45 – x

X = 45 – 6 = 39

Directions (Q. 6 – 10):

6.Answer e

The difference of difference of is, 8, 8, 8,…

The answer is, 1935

7.Answer b

The difference of difference is, 41, 42, 43, 44,..

The answer is, 1339

8.Answer d

The pattern is, ÷ 2 + 8

The answer is, 202.5

9.Answer a

The pattern is, *0.5 + 0.5, *1 +1, *1.5 + 1.5, *2 +2, *2.5 +2.5, *3 + 3,….

The answer is, 273

10.Answer d

The pattern is, ÷ 2 + 12, ÷ 2 +10, ÷ 2 + 8, ÷ 2 + 6, ÷ 2 + 4,..

The answer is, 38

11.Answer c

Total probability = 13C3

Required probability = 4C2 and 9C1

The probability that 2 marbles are pink,

= > [4C2 and 9C1] / 13C3­

= > 27/143

12.Answer a

 (2/5) of a number = (3/7) of another number

(2/5)*x = (3/7)*y

(x/y) = (3/7)*(5/2) = 15/14

X : y = 15 : 14

1’s = 18

The numbers are = 15*18 and 14*18 = 270 and 252

13.Answer b

90000*(70/100) = 63000

90000*(76/100)*(95/100) = 64980

Required difference

= > 64980 – 63000

= > Rs. 1980

14.Answer c

The share of P and Q,

= > [18000*5 + 20000*7]: [24000*9]

= > 230000: 216000

= > 115: 108

223’s = 73590

1’s = 330

The share of Q = 108’s = Rs. 35640

15.Answer a

Let us assume the cost price be Rs. 100,

MP = (125/100)*CP = (125/100)*100 = 125

SP = 125*(88/100) = Rs. 110

Profit % = (10/100)*100 = 10 %

Directions (Q. 16 – 20)

16.Answer b

Required % = [(950 + 800)/1500]*100 = (1750/1500)*100

= > 117 %

17.Answer d

The total number of students participated in cultural events from college R

= > 1050*(14/100) = 147

The total number of students participated in cultural events from college S

= > 1200*(18/100) = 216

Required ratio = 147: 216 = 49: 72

18.Answer c

The ratio of girls and boys in the college Q = 3: 2

The ratio of girls and boys in the college S = 1: 1

The total number of boys in college Q = 950*(2/5) = 380

The total number of girls in college S = 1200*(1/2) = 600

Required difference = 600 – 380 = 220

19.Answer a

The total number of students participated in cultural events from college P and T together

= > 1500*(20/100) + 800*(25/100)

= > 300 + 200 = 500

Required average = 500/2 = 250

20.Answer d

The total number of students didn’t participate any cultural events from college Q and R together

= > 950*(88/100) + 1050*(86/100)

= > 836 + 903

= > 1739

 

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