# SBI PO Prelims Quantitative Aptitude (Day-13)

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Missing number series

Direction (1 – 3): What will come in place of question mark (?) in the following number series?

1) 19, 43, 91, 187, 379, 763, ?

A) 1531

B) 1743

C) 1471

D) 1961

E) None of these

2) 87, 183, ?, 314, 353, 377, 388

A) 242

B) 246

C) 258

D) 264

E) None of these

3) 587, 537, 468, ?, 289, 187, 82

A) 384

B) 376

C) 397

D) 368

E) None of these

Directions (4 – 6): In the following questions, two equations I and II are given. You have to solve both equations and give answer as,

a) If x > y

b) If x â‰¥ y

c) If x < y

d) If x â‰¤ y

e) If x = y or the relation cannot be established.

4)

I)Â x2-8x-345=0

II)Â y2+9y-322=0

5)

I)Â x2+23x+126=0

II)Â y2+26y+153=0

6)

I)Â x2+14x+45=0

II)Â y2+17y+72=0

Approximation

Direction (7-10): What is the approximate value should come in place of question mark in the following questions?

7) Â 89.90 * 6.06 + 56.05 % of 399.90 – âˆš3720.898 * 4.09 + ? = 79.906 * 6.99

A) 50

B) 60

C) 40

D) 20

E) None of these

8) 23.90 % of 75.09 + 12.12 * 31.13 + 119.08 Ã· âˆš289.098 = ?

A) 367

B) 377

C) 387

D) 397

E) None of these

9) 114.90 % of 19.908 + 189.90 * 5.99 – âˆš1521.09 Ã· âˆš8.909 = ?

A) 1120

B) 1130

C) 1150

D) 1170

E) None of these

10) 55.55 % of 654.90+18.18 % of 230.98 + 54.54 % of 198.087 = ? + 289.90

A) 180

B) 220

C) 260

D) 290

E) None of these

Directions (1-3) :

19+(19+5)=43

43+(43+5)=91

91+(91+5)=187

187+(187+5)=379

379+(379+5)=763

763+(763+5)=1531

87+(16*6)=183

183+(15*5)=258

258+(14*4)=314

314+(13*3)=353

353+(12*2)=377

377+(11*1)=388

587-(25*2)=537

537-(23*3)=468

468-(21*4)=384

384-(19*5)=289

289-(17*6)=187

187-(15*7)=82

x2-8x-345=0

x2-23x+15x-345=0

x(x-23)+15(x-23)=0

(x-23)(x+15)=0

x=23, -15

y2+9y-322=0

y2+23y-14y-322=0

y(y+23)-14(y+23)=0

(y-14)(y+23)=0

y=14, -23

x2+23x+126=0

x2+9x+14x+126=0

x(x+9)+14(x+9)=0

(x+9)(x+14)=0

x=-9, -14

y2+26y+153=0

y2+9y+17y+153=0

y(y+9)+17(y+9)=0

(y+17)(y+9)=0

y=-9, -17

x2+14x+45=0

x2+9x+5x+45=0

x(x+9)+5(x+9)=0

(x+5)(x+9)=0

x=-5, -9

y2+17y+72=0

y2+8y+9y+72=0

y(y+8)+9(y+8)=0

(y+8)(y+9)=0

y=-8, -9

Directions (7-10) :

540+224-244+?=560

?=40

18+372+7=?

397=?

23+1140-13=?

1150=?