# SBI PO Prelims Quantitative Aptitude (Day-08)

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Wrong Number series

Directions (1-4): Find the wrong term in the following number series

1) 17, 44, 169, 512, 1240, 2572

A) 44

B) 512

C) 1240

D) 2572

E) None of these

2) 13, 78, 390, 1560, 4680, 9440

A) 1560

B) 4680

C) 9440

D) 78

E) None of these

3) 17, 33, 46, 62, 75, 90

A) 75

B) 46

C) 90

D) 62

E) None of these

4) 81, 198, 313, 426, 537, 645

A) 537

B) 313

C) 645

D) 198

E) None of these

Directions (5-7): 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 ≥ y

c) If x < y

d) If x ≤ y

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

5)

I) x2+22x+117=0

II) y2+26y+153=0

6)

I) x2+24x+128=0

II) y2+22y+96=0

7)

I) x2+8x-273=0

II)y2-6y-91=0

Simplification

Directions (8-10): What value should come in place of question mark in the following questions?

8) 62.5% of 2960+√1369*18-21*12=?+37.5% of 4480

A) 584

B) 482

C) 538

D) 429

E) None of these

9) √841*√6241+20% of 520-120% of 490=?+130*8

A) 767

B)  757

C) 747

D) 737

E) None of these

10) 45% of 560+80% of 780+√5329*11=?+145*8

A) 481

B) 519

C) 479

D) 531

E) None of these

Directions (1-4) :

17+33=44

44+53=169

169+73=512

512+93=1241

1241+113=2572

13*6=78

78*5=390

390*4=1560

1560*3=4680

4680*2=9360

17+(1+7)+8=33

33+(3+3)+7=46

46+(4+6)+6=62

62+(6+2)+5=75

75+(7+5)+4=91

81+117=198

198+115=313

313+113=426

426+111=537

537+109=646

Directions (5-7) :

x2+22x+117=0

x2+13x+9x+117=0

x(x+13)+9(x+13)=0

(x+13)(x+9)=0

x=-13, -9

y2+26y+153=0

y2+9y+17y+153=0

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

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

y=-17, -9

x2+24x+128=0

x2+8x+16x+128=0

x(x+8)+16(x+8)=0

(x+16)(x+8)=0

x=-16, -8

y2+22y+96=0

y2+6y+16y+96=0

y(y+6)+16(y+6)=0

(y+16)(y+6)=0

y=-16, -6

x2+8x-273=0

x2+21x-13x-273=0

x(x+21)-13(x+21)=0

(x-13)(x+21)=0

x=13, -21

y2-6y-91=0

y2-13y+7y-91=0

y(y-13)+7(y-13)=0

(y+7)(y-13)=0

y=-7, 13

Directions (8-10) :

1850+666-252=?+1680

?=584

2291+104-588=?+1040

767=?