Practice MCQ Questions and Answer on Missing Number Finding

51.

Find the missing number?

• (A) 7
• (B) 3
• (C) 6
• (D) 8

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 Logic (Row-wise): Central Element = Difference of Left and Right elements 7 - 4 = 3 6 - 2 = 4 So, 9 -3 = 6. Missing Element = 6.

52.

Find the missing number?

• (A) 1
• (B) 5
• (C) 2
• (D) 4

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 The sum of the numbers along each side of the triangle is always 11. So, x + 2 + 5 = 11. x = 11 - 7 = 4.

53.

Find the missing number?

• (A) 3
• (B) 1
• (C) 5
• (D) 2

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 In each diagram, multiply the numbers shown on the arms together and add the number at the very top to give a 2 digit result, written in the lower 2 spaces. So, 50 = 6 * 8 + x. x = 2.

54.

Find the missing number?

• (A) 13
• (B) 11
• (C) 7
• (D) 9

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 7 - 3 = 4. 9 - 3 = 6. So, 12 - 3 = 9.

55.

Find the missing number?

• (A) 4
• (B) 7
• (C) 9
• (D) 11

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 Start anywhere on the diagram, and move clockwise, calculating the sum of every third circle. This always equals 15.

56.

Find the missing number?

• (A) 14
• (B) 5
• (C) 9
• (D) 0

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 Row-wise: First Element + Second Element - 2 = Third Element. 6 + 1 - 2 = 5 3 + 9 - 2 = 10 4 + 3 - 2 = x x = 5. Required Number = 5.

57.

Find the missing number?

• (A) 93
• (B) 104
• (C) 98
• (D) 110

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 Logic: Next Number = 2 * previous number + 2 Thus, Missing Number = 2 * 54 + 2 = 110.

58.

Find the missing number?

• (A) 13
• (B) 29
• (C) 1
• (D) 9

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 Logic (Row-wise): Sum of the Even Numbers - Sum of the Odd Numbers = 10. 18 - (7 + x) = 10 - 7 - x = - 8 x = 1.

59.

Find the missing number?

• (A) 7
• (B) 9
• (C) 8
• (D) 6

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 Working from left to right, numbers represent the reverse alphabetical values of the vowels in the alphabet. I.e There are 5 Vowels A, E, I, O, U. A = 1 = Reverse alphabetical number = 26. E = 5 = 22 I = 9 = 18 O = 15 = 12 So, U = 21 =6. Missing Number = 6.

60.

Find the missing number?

• (A) 0
• (B) 7
• (C) 1
• (D) 3

Show Answer

 Logic (Column-wise): Central Number = Difference of the sum of the bottom two numbers and upper two numbers. So, 8 = (3 + 9) - (1 + x) 8 = 11 -x x = 3. Missing Element = 3.