### Question 1.

**What should come at the place of question mark (?) in the following number series?**

649.6875, 433.125, 173.25, 49.5, ?, 2

649.6875, 433.125, 173.25, 49.5, ?, 2

**A.**13

**B.**10

**C.**11

**D.**15

**E.**9

**Ans. C.**

**Solution:**

### Question 2.

**What should come at the place of question mark (?) in the following number series?**

11, 12, ?, 81, 328, 1645

11, 12, ?, 81, 328, 1645

**A.**56

**B.**36

**C**. 55

**D.**26

**E.**45

**Ans. D.**

**Solution:**

### Question 3.

**What should come at the place of question mark (?) in the following number series?**

1008, 2340, 3341, 4071, ?, 7928

1008, 2340, 3341, 4071, ?, 7928

**A.**7160

**B.**7584

**C.**6652

**D**. 6952

**E.**5525

**Ans. B.**

**Solution:**

### Question 4.

**What should come at the place of question mark (?) in the following number series?**

16, 9, 11, 26, 112, ?

16, 9, 11, 26, 112, ?

**A.**572

**B.**814

**C.**912

**D**. 258

**E.**365

**Ans. C.**

**Solution:**

### Question 5.

**What should come at the place of question mark (?) in the following number series?**

978, ?, 924, 852, 708, 420

978, ?, 924, 852, 708, 420

**A.**960

**B**. 823

**C.**912

**D**. 732

**E**. None of these

**Ans. A.**

**Solution:**

### Question 6.

**What should come at the place of question mark (?) in the following number series?**

5, 9, 25, 61, ?, 225

5, 9, 25, 61, ?, 225

**A**. 112

**B.**130

**C.**122

**D**. 125

**E.**109

**Ans. D.**

**Solution:**

### Question 7.

**What should come at the place of question mark (?) in the following number series?**

3, 15, 105, 525, 3675, ?

3, 15, 105, 525, 3675, ?

**A.**15875

**B.**18375

**C.**18522

**D.**18202

**E.**18963

**Ans. B.**

**Solution:**

### Question 8.

**What should come at the place of question mark (?) in the following number series?**

3.5, 5, 7.5, 11.25, ?, 23.50

3.5, 5, 7.5, 11.25, ?, 23.50

**A.**12.75

**B.**15

**C.**14.75

**D.**12.25

**E.**16.50

**Ans. E.**

**Solution:**