“20-20” Quantitative Aptitude | Crack SBI Clerk 2018 Day-88

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“20-20” Aptitude Questions | Crack SBI Clerk 2018 Day-88

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

  1. 29. 98 % of 5410 + 67.79 % of 4102 =? – 2167.78
  1. 5760
  2. 6580
  3. 4325
  4. 7940
  5. 8275
  1. √207936 × √3364 – (19.91)2 =? – (63.01)2
  1. 25760
  2. 18540
  3. 12470
  4. 30020
  5. 22580
  1. 261.01 × 178.06 – 8765.10 =? + 6483.21
  1. 45860
  2. 37890
  3. 31210
  4. 56140
  5. 42570
  1. (956.75 – 451.45) ÷ 22.01 + 816.93 =? – 34 % of 702
  1. 1080
  2. 1540
  3. 1890
  4. 2160
  5. 2830
  1. 2348.45 + 4259.95 ÷ 15.03 =? – 793.893
  1. 4150
  2. 2890
  3. 5270
  4. 1860
  5. 3430

 

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

  1. 64, 505, 3529,? , 105841
  1. 15783
  2. 17567
  3. 23581
  4. 21169
  5. 31526
  1. 134, 162, 194, 234, 290,?
  1. 412
  2. 378
  3. 326
  4. 484
  5. 428
  1. 36, 37, 78, 243,?
  1. 988
  2. 646
  3. 784
  4. 812
  5. 1026
  1. 144, 72, 108, 270, ? , 4252.5
  1. 832
  2. 1278
  3. 945
  4. 760
  5. 1054
  1. 802, 400, 199, 98.5,? , 23. 125
  1. 25
  2. 75
  3. 50
  4. 75
  5. 25
  1. If 27 men can do a piece of work in 40 days by working for 6 hours then find in how many days 36 men can do the same work by working 5 hours a day?
  1. 42 days
  2. 28 days
  3. 36 days
  4. 32 days
  5. None of these
  1. The salary of A is 80% more than B while the salary of C is 25% less than the total salary of A and B together then find what is the salary of C if B’s salary is Rs. 45000?
  1. 94500
  2. 88900
  3. 76400
  4. 62800
  5. None of these
  1. The average age of two persons is 46 years. 16 years back, the ratio between their ages were 1 : 2, then what is the difference between present ages of these two persons?

a) 16 years

b) 20 years

c) 24 years

d) 12 years

e) 8 years

  1. Find the respective ratio of the volumes of a sphere and a cylinder, both having radius 14cm and the height of the cylinder is 16 cm.
  1. 5:8
  2. 7:6
  3. 6:7
  4. 8:5
  5. None of these
  1. Difference between Simple interest and Compound interest on a certain sum at the rate of 20% per annum for two years is Rs.1680. Find the simple interest on that sum at the rate of 14% per annum after 8 years.
  1. 44040
  2. 47340
  3. 45040
  4. 47040
  5. None of these

 

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

Following table shows the total no of peoples visiting the six different malls and the ratio of men and women who are all visiting those malls also given.

Malls Total no of visitors Men : women
A 15600 3 : 2
B 13541 6 : 5
C 16245 5 : 4
D 12450 7 : 3
E 18300 1 : 1
F 17853 7 : 4

 

  1. Find the total no of women visiting all the six given malls together?
  1. 28564
  2. 32896
  3. 38992
  4. 40258
  5. None of these

17. Total no of men who are all visiting the malls D, E and F together is approximately what percentage of total no of women who are all visiting the malls A, B and C together?

  1. 132 %
  2. 149 %
  3. 157 %
  4. 121 %
  5. 105 %
  1. Find the ratio between the total no of men visiting the malls B and C together to that of the total no of women visiting the malls A and D together?
  1. 9856 : 6523
  2. 11257 : 8875
  3. 13549 : 7356
  4. 16411 : 9975
  5. None of these
  1. Find the difference between the total no of visitors visiting the malls C, D and E together to that of the total no of visitors visiting the malls A, B and F together?
  1. 1
  2. 5
  3. 8
  4. 12
  5. 19
  1. Total no of women who are all visiting the malls A, C and E together is approximately what percentage more/less than the total no of men who are all visiting the malls B, D and F together?
  1. 27 % more
  2. 18 % less
  3. 33 % more
  4. 42 % less
  5. 15 % more

 

Answers:

Directions (Q. 1 – 5):

  1. Answer b

30 % of 5400 + 68 % of 4100 = x – 2168

(30/100)*5400 + (68/100)*4100 = x – 2168

1620 + 2788 + 2168 = x

X = 6576 = 6580

  1. Answer d

√207936 × √3364 – (20)2 = x – (63)2

456 * 58 – 400 + 3969 = x

26448 – 400 + 3969 = x

X = 30017 = 30020

  1. Answer c

(261*178) – 8765 = x + 6483

46458 – 8765 – 6483 = x

X = 31210

  1. Answer a

(957 – 451)/22 + 817 = x – (34/100)*700

(506/22) + 817 = x – 238

23 + 817 + 238 = x

X = 1078 = 1080

  1. Answer e

2348 + (4260/15) = x – 794

2348 + 284 + 794 = x

X =3426 = 3430

 

Directions (Q. 6 – 10):

  1. Answer d

The pattern is, *8 – 7, *7 – 6, *6 – 5, *5 – 4,..

The answer is, 21169

  1. Answer b

The difference of difference is, ×2

The answer is, 378

  1. Answer a

The pattern is, *1 + 12, *2 + 22, *3 + 32, *4 + 42

The answer is, 988

  1. Answer c

The pattern is, *1/2, *3/2, *5/2, *7/2, *9/2

The answer is, 945

  1. Answer e

The pattern is, ÷ 2 – 1 (or) (num-2) ÷ 2

The answer is, 48. 25

  1. Answer c

Let the number of days required be x

According to the question,

27*40*6= 36*5*x

x= (27*40*6)/(36*5)

x= 36 days

  1. Answer a

Salary of A = 45000*180/100= Rs. 81000

Salary of A and B together = 81000 + 45000 = Rs. 126000

Salary of C = 126000*75/100 = Rs. 94500

  1. Answer b

The average age of two persons = 46 years

Total present age of two persons = 46*2 = 92 years

16 years back, the ratio between their ages = 1 : 2(x, 2x)

According to the question,

X+ 16 + 2x + 16 = 92

3x + 32 = 92

3x = 60

X = 20

The present age of two persons = x + 16, 2x + 16 = 36, 56

Required difference = 56 – 36 = 20 years

  1. Answer b

Volume of the sphere = 4/3πr3 = 4/3 x 22/7 x 14 x 14 x 14

Volume of the cylinder = πr2h = 22/7 x 14 x 14 x 16

Required ratio = (4/3 x 22/7 x 14 x 14 x 14): (22/7 x 14 x 14 x 16) = 7:6

  1. Answer d

We know that, the difference between CI and SI for two years is

Difference = P*(r/100)2

=> 1680 = P*(20/100)2

=> 1680 = P*(1/5)2

= > 1680 = P*(1/25)

=> P = Rs. 42000

SI = (42000 x 14 x 8)/100 = Rs. 47040

 

Directions (Q. 16 – 20)

  1. Answer c

The total no of women visiting all the six given malls together

= > 15600*(2/5) + 13541*(5/11) + 16245*(4/9) + 12450*(3/10) + 18300*(1/2) + 17853*(4/11)

= > 6240 + 6155 + 7220 + 3735 + 9150 + 6492

= > 38992

  1. Answer b

Total no of men who are all visiting the malls D, E and F together

= > 12450*(7/10) + 18300*(1/2) + 17853*(7/11)

= > 8715 + 9150 + 11361

= > 29226

Total no of women who are all visiting the malls A, B and C together

= > 15600*(2/5) + 13541*(5/11) + 16245*(4/9)

= > 6240 + 6155 + 7220

= > 19615

Required % = (29226/19615)*100 = 148.99 % = 149 %

  1. Answer d

The total no of men visiting the malls B and C

= > 13541*(6/11) + 16245*(5/9)

= > 7386 + 9025 = 16411

The total no of women visiting the malls A and D

= > 15600*(2/5) + 12450*(3/10)

= > 6240 + 3735 = 9975

Required ratio = 16411: 9975

  1. Answer a

The total no of visitors visiting the malls C, D and E

= > 16245 + 12450 + 18300 = 46995

The total no of visitors visiting the malls A, B and F

= > 15600 + 13541 + 17853 = 46994

Required difference = 46995 – 46994 = 1

  1. Answer b

The total no of women who are all visiting the malls A, C and E together

= > 15600*(2/5) + 16245*(4/9) + 18300*(1/2)

= > 6240 + 7220 + 9150 = 22610

The total no of men who are all visiting the malls B, D and F together

= > 13541*(6/11) + 12450*(7/10) + 17853*(7/11)

= > 7386 + 8715 + 11361 = 27462

Required % = [(27462 – 22610)/27462]*100 = (4852/27462)*100

= > 17.66 % = 18 % less

 

 

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