Practice MCQ Questions and Answer on Missing Number Finding

241.

Find the missing number?

• (A) 3
• (B) 1
• (C) 4
• (D) 7

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 Logic: Lower Element = Top element - left element - right Element Thus, x = 12 - 5 - 3 x = 4. Missing number = 4.

242.

Find the missing number?

• (A) 7
• (B) 4
• (C) 1
• (D) 13

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 Starting with the 3 circles in the top row, add together values in corresponding segments of the left and right hand halves of the left hand circle, and put the results in corresponding segments of the left hand half of the central circle. Repeat this pattern for the left and right hand segments of the right hand circle. For the lower row, follow the same pattern, but calculating the differences between values in the left and right hand halves of the left and right hand circles, putting the results in the central circle.

243.

Find the missing number?

• (A) 19
• (B) 25
• (C) 21
• (D) 28

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 Logic ( Row-wise): First Element + Second element = Result 2 * Result + 1 = Third element. So, Missing number, 3 + 7 = 10 2 * 10 + 1 = x x = 21. Required Number = 21.

244.

Find the missing number?

• (A) 3
• (B) 4
• (C) 1
• (D) 5

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 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.

245.

Find the missing number?

• (A) 3
• (B) 11
• (C) 17
• (D) 21

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 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.

246.

Find the missing number?

• (A) 13
• (B) 19
• (C) 9
• (D) 21

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 In each star, the central value equals the sum of the upper and lower digits on each star, subtracting the sum of the left and right hand digits. So, Missing Number = 9 + 7 + 6 - 5 - 4 = 13.

247.

Find the missing number?

• (A) 0
• (B) 2
• (C) 11
• (D) 1

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 Working from left to right and reading each pair of numbers as a 2 digit value, these values represent the sequence of multiples of 7, starting at 49 and finishing on 70. So, Missing Element = 0.

248.

Find the missing number.

• (A) 34
• (B) 42
• (C) 44
• (D) 45

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 Logic: Column-Wise (First Column Element × 4th Column element) - (2nd column element + 3rd Column element) = Last Column Element (4×2)-(5+3) = 0 (7×4)-(3+4) = 21 (6×5)-(4+4) = 22 (9×5)-(6+5) = 34.

249.

Find the missing number?

• (A) 13
• (B) 9
• (C) 1
• (D) 7

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 In each diagram, the sum of the upper left and upper middle numbers is written in the centre box, and the sum of the upper right and upper middle numbers is written in the lower central box. So, Missing number = 4 + 3 = 7.

250.

Find the missing number?

• (A) 9
• (B) 7
• (C) 1
• (D) 6

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 1st element in 3rd circle = 1st element in 1st circle + 1st element in second circle = 1 + 6 =7 2nd element in 3rd circle = 2nd element in 1st circle + 2nd element in second circle = 3 +5 = 8 Same way, 2 +6 = 8 and 7 + 1 = 8. In 4th Circle, 1st element = Difference of 1st element of 1st circle and 2nd circle = 6 -1 = 5 2nd element = Difference of 2nd element of 1st circle and 2nd circle = 5 -3 = 2 3rd element = Difference of 3rd element of 1st circle and 2nd circle = 7 - 1 = 6. So, required element = 6.