Practice MCQ Questions and Answer on Missing Number Finding

21.

Find the missing number?

• (A) 1
• (B) 5
• (C) 4
• (D) 7

Show Answer

 Working in columns, the sum of the numbers in each column is always 14. So, 2 + 4 + 4 + x = 14. x = 14 - 10 = 4.

22.

Find the missing number?

• (A) 15
• (B) 9
• (C) 17
• (D) 11

Show Answer

 In each star, add together the top 3 numbers, and subtract the lower 2 numbers, to give the value in the centre of each star. So, 5 + 5 + 6 - 3 -2 = x. x = 11.

23.

Find the missing number?

• (A) 92
• (B) 78
• (C) 97
• (D) 85

Show Answer

 Working from top to bottom, left to right, add together the first two numbers and subtract 3 to give the next value along. So, Missing Number = 37 + 58 - 3 = 92.

24.

Find the missing number?

• (A) 3
• (B) 4
• (C) 1
• (D) 5

Show Answer

 In each triangle, the number at the apex of the triangle equals the average of the two numbers at the bottom. So, (5 + x)/2 = 5 5 + x = 10 x = 5. Missing number = 5.

25.

Find the missing number?

• (A) 2
• (B) 4
• (C) 9
• (D) 8

Show Answer

 Clock-wise: First Square: 2 + 3 + 6 + 9 = 20. Second Square: 6 + 7 + 3 + 3 = 19 Fourth Square: 6 + 9 + 1 + 1 = 17 Third Square: 1 + 3 + x + 5 = 18 x = 18 - 9 = 9. Missing Number = 9.

26.

Find the missing number?

• (A) 3
• (B) 4
• (C) 9
• (D) 6

Show Answer

 Moving left to right, numbers represent the reverse alphabetical values of the 5 vowels. So, At missing place, the last vowel U will come. I.e. Alphabetical order = 21 and reverse of this would be 6.

27.

Find the missing number?

• (A) 8
• (B) 2
• (C) 5
• (D) 10

Show Answer

 For each circle, add the left and right hand numbers together and put this total in the bottom segment of the circle one place to the right. So, Missing Number = 6 + 4. Missing Number = 10.

28.

Find the missing character.

• (A) 20
• (B) 25
• (C) 50
• (D) 75

Show Answer

 Logic: 22 +42 = 20 32 +92 = 90 12 +72 = 50  

29.

Find the missing number?

• (A) 8
• (B) 5
• (C) 7
• (D) 6

Show Answer

 Take pairs of numbers at opposite ends of the diagram. Their total is always 10. i.e Firs Element + last Element = 10 Second Element + second Element from last = 10 So, 5 + x = 10 x = 5.

30.

Find the missing number?

• (A) 3
• (B) 11
• (C) 17
• (D) 21

Show Answer

 Logic: Divide each circle in two equal circle vertically. Now, Sum of the left hand element in first circle = Top left hand element in middle circle. 3 +2 + 8 = 13 Sum of the right hand element in first circle = bottom left hand element in middle circle. 6 + 9 + 1 = 16 Sum of the left hand element in Third circle = Top right hand element in middle circle. 4 + 5 + 2 = x x = 11. Missing element = 11.