# NUMBER SERIES OF MATH FOR ALL COMPETITIVE EXAM, 16TH OCT0BER 2016

NUMBER SERIES

1.  8 ,  14 , 26 , 50 , 98 , ?

Ans:-  194

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Solution:- 8 × 2 – 2 = 14 , 14 × 2 – 2 = 26,…,98 × 2 – 2 = 194

2.  5 , 50 , 216 , ? , 1318 , 1319

Ans:- 657

Solution:- 5 × 5 + 5² = 50 , 50 × 4 + 4 = 216 , 216 × 3 + 3² = 657,…,

3.  10,000 , 6,625 , ? , 3,097 , 2,025

Ans:- 4428

Solution:- 10,000 – 15³ = 6,625, 6,625 – 13³ = 4428,…,

4.   1 , 4 , 27 , 256 , 3,125 , ?

Ans:- 46,655

Solution:- 1 , 2² , 3³ ,…, 6 ⁶

5.   8524 , 4262 , 2131 , ? , 532.75 ,266.375

Ans:- 1065.5

Solution:- 8524 ÷ 2 = 4262 ,.., 2131 ÷ 2 = 1065.5

6.  5530 , 5555 , 5591 , 5640 , ? , 5785

Ans:- 5704

Solution:- 5530 + 5² = 5555 , 5555 + 6² = 5591,..,5640 + 8² = 5704

7.  10 , 11 , 24 , ? , 304 , 1525

Ans:-  75

Solution:- 10 × 1 + 1 = 11 , 11 × 2 + 2 = 24 , 24 × 3 + 3 = 75,..

8.  445 , 229 , 104 , 40 , 13 , ?

Ans:-  5

Solution:-  445 – 6³ = 229 , 229 – 5³ = 104 ,.., 13 – 2³ = 5

9.  2 , 122 , ? , 62 , 1682

Ans:-  442

Solution:- 1² + 1 = 2 , 11² + 1 = 122 , 21² + 1 = 442,..,

10. 1000 , ?  , 27,000 , 64,000 , 1,25,000 , 2,16,000

Ans:-  8000

Solution:- 10³ , 20³ , 30³ ,…

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