Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
1, 2, 4, 4, 9, 6, ?, 8, 25, 10

Option 1: 8

Option 2: 9

Option 3: 16

Option 4: 11

Question : Directions: From the given options, choose the correct one that will replace the question mark (?) in the following series.
1, 5, 3, 2, 10, 6, 4, 15, 9, 8, ?, 12

Option 1: 20

Option 2: 19

Option 3: 15

Option 4: 18

Question : Which vitamin deficiency causes the disease, Pernicious anaemia?

Option 1: Vitamin B₅

Option 2: Vitamin B₁₂

Option 3: Vitamin B₆

Option 4: Vitamin C

Question : Directions: In the following question a series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.
4, 5, 6, 9, 8, 13, 10, ?

Option 1: 14

Option 2: 15

Option 3: 11

Option 4: 17

Question : Directions: Which of the following equations will be correct when the signs × and ÷ and the numbers 12 and 9 are interchanged?

Option 1: 12 + 8 × 9 + (24 ÷ 5 + 8) – 7 = 35

Option 2: 9 × 17 + 5 (24 ÷ 9) – 12 = 46

Option 3: 14 ÷ 2 + 10 (12 – 6) × 9 = 37

Option 4: 10 + 2 ÷ 3 + (24 × 9 + 8) – 12 = 17