# SBI CLERK PRELIMS – APTITUDE – 9

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SBI Clerk Prelims 2018 Study Planner Day – 9

Section : Quantitative Aptitude

Topic : Number Series

Time: 10 Minutes

1) 81333123, ___?

2) 2642600, ___?

3) 2040932820, ___?, ___?

4) 28721152, ___?

5) 43925, ___?

6) 472429, ___?

7) 211212, ___?

8) 11361, ___?

9) 11186, ___?

10) 1854384, ___?

Solutions :

1) Ans: 723

Soln: Upto 5!

= 1,            2,          6,        24,     120

X5+3,      x5+3,     x5+3,   x5+3, x5+3

2)  Ans: 14520

Soln: Upto 5!

= 1,            2,          6,        24,     120

12+1,     22+2,     62+6, 242+24,1202+120

3) Ans: 125, 115……….

Soln: n!+n, n!-n

4) Ans: 28800

Soln: Upto 5!

= 1,            2,          6,        24,     120

12+12,     22+22,  62+62,242+242,1202+1202

5) Ans: 123

Soln: Upto 5!

= 1,            2,          6,        24,     120

+3,          +1,        +3,        +1,      +3

6) Ans: 480

Soln: Upto 5!

= 1,            2,          6,        24,     120

x4,          +5,        x4,        +5,      x4

7) Ans: 240

Soln: Upto 5!

= 1,            2,          6,        24,     120

x2,          2,        x2,        2,      x2

8) Ans: 14400

Soln: Upto 5!

= 1,            2,          6,        24,     120

x1,          2,        x6,       24,   x120

9) Ans: 720

Soln: Upto 5!

= 1,            2,          6,        24,     120

x1,          2,        x3,        ,      x5

10) Ans: 3000

Soln: Upto 5!

= 1,            2,          6,        24,     120

x12,         x22,       x32,       x42,     x52

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