1.

Find the missing number in the following series.

2, 3, 6, 15, 45, ?

**Answer: Option 'D'**

**2 × 1.5 = 3
3 × 2 = 6
6 × 2.5 = 15
15 × 3 = 45
45 × 3.5 = 157.5**

2.

_CAM_AMC_M_A_CAM

**Answer: Option 'D'**

**MCACM**

3.

What will be the next term in?

REU, QGV, PIW, QKX, -----

**Answer: Option 'D'**

**NMY**

4.

Find the wrong number in the series.

2, 5, 10, 17, 26, 37, 50, 64

**Answer: Option 'C'**

**1 ^{2} + 1, 2^{2} + 1, 3^{2} + 1 ..........8^{2} + 1 = 65 **

But 64 has been given here. So our wrong number is 64

5.

Look at the series 3.8, 3.5, 3.2, 2.9…… What number should come next?

**Answer: Option 'B'**

**2.6**

6.

Find the missing number in the following series.

12, 53, 207, 618, ?

**Answer: Option 'C'**

**12 × 5 - 7 = 53
53 × 4 - 5 = 207
207 × 3 - 3 = 618
618 × 2 - 2 = 1234.**

7.

Find the missing number in the following series.

512, 256, 64, 32, ?

**Answer: Option 'C'**

**512/2 = 256
256/4 = 64
64/2 = 32
32/4 = 8.**

8.

Look at this series: 1000, 200, 40, . . .

What number should come next?

**Answer: Option 'B'**

**This is a simple division series.
Each number is divided by 5.
Rule = (1st number / 5 = 2nd number) (2nd number / 5 = 3rd number)....
Now, (1000 / 5 = 200), (200 / 5 = 40), (40 / 5 = 8)...
So answer is a = 8.**

9.

18 21 25 18 29 33 18

What numbers should come next ?

**Answer: Option 'C'**

**This is a simple addition series with a random number, 18, interpolated as every third number.
In the series, 4 is added to each number except 18, to arrive at the next number**

10.

Look at the series 2, 3, 5, 8, 12….. What number should come next?

**Answer: Option 'D'**

**17**

11.

3 13 18 23 28 33

What number should come next?

**Answer: Option 'A'**

**In this simple addition series, each number is 5 greater than the previous number.
Rule = (1st no) (1st no + 5 = 2nd no) (2nd no + 5 = 3rd no) . . .
Now (3) (3 + 5 = 8) (8 + 5 = 13) (13 + 5 = 18) (18 + 5 = 23) (23 + 5 = 28) (28 + 5 = 33) (33 + 5 = 38) (38 + 5 = 43)
So the answer is c = 38 43**

12.

Find the missing number in the following series.

376, 188, 47, 23.5, ?

**Answer: Option 'C'**

**367/2 = 188
188/4 = 47
47/2 = 23.5
23.5/4 = 5.8**

13.

Look at this series: 7, 10, 8, 11, 9, 12, . . .

What number should come next?

**Answer: Option 'B'**

**This is a simple alternating addition and subtraction series.
In the first pattern, 3 is added;
In the second pattern, 2 is subtracted.
Rule =(1st number) (1st number + 3 = 2nd number) (2nd number - 2 = 3rd number) (3rd number + 3 = 4th number)
Now (7) (7 + 3 = 10) (10 - 2 = 8) (8 + 3 = 11) (11 - 2 = 9) (9 + 3 = 12) (12 - 2 = 10)...
So the answer is b = 10.**

14.

What will be the next term in?

ZAM, YBL, ----, WDJ, VEI

**Answer: Option 'A'**

**XCK**

15.

U_VU_WV__WV_

**Answer: Option 'A'**

**WUUUU**

16.

Find the wrong number in the series.

1, 2, 6, 15, 31, 56, 91

**Answer: Option 'D'**

**The difference odd the two consecutive numbers are
1, 4, 9, 16, 25, 35.
+1**

17.

Find the wrong number in the following series

6,15,30,75,151,375,750

**Answer: Option 'A'**

**151**

18.

Find the missing number in the following series.

1050, 506, 236, 105, ?

**Answer: Option 'D'**

**1050/2 = 525 - 19 = 506
506/2 = 253 - 17 = 236
236/2 = 118 - 13 = 105
105/2 = 52.5 - 11 = 41.5**

19.

E_G_EFF_E_FG_FG_EF

**Answer: Option 'C'**

**FGGEEG**

20.

QQQ_TT__Q_T_Q_Q

**Answer: Option 'C'**

**TQQTTQ**

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