Missing Number Finding - General Inteligence & Reasoning MCQ Questions and Answers

For First Circle:
Left segment element * right segment Element - 3 = Lower number
3 *7 - 3 = 18.

For Second Circle:
Left segment element * right segment Element - 4 = Lower number
8 *2 - 4 = 16.

For Third Circle:
Left segment element * right segment Element - 5 = Lower number
x = 9 *3 -5
x = 22.
Missing number = 22.

Logic:
Lower Element = Top element - left element - right Element

Thus,
x = 12 - 5 - 3
x = 4.
Missing number = 4.

Logic (Row-wise):
Element at Middle = Difference of two left element + difference of two right element.

Thus,
x = 5 - 1 + 4 -1
x = 4 + 3
x = 7.
Missing number = 7.

Logic:
The inner digit in each segment equals the sum of the two numbers in the outer part of the opposite segment.

Thus,
2 +x = 9
x = 7.
Missing number = 7.

Logic:
In each row of each grid, multiply the left and right hand numbers together to give a digit value, and write this value in the two centre boxes.

Thus,
Central Element in last box = 6 * 5 = 30.
Missing element = 0.

Logic:
Central Element = Sum of the left column element - sum of the right column element.

Thus,
x = 4 + 8 +2 - 5 + 1 + 3
x = 5.
Missing Number = 5.

Logic:
Reading each row of the diagram as a series of 3 digit numbers, the center 3 digit number equals either the sum of the top 2 numbers or the sum of the lower 2 numbers.

Sum of top two numbers
179 + 363 = 542

Sum of lower two numbers
275 + 26X = 542
26X = 542 - 275
26X = 267
X = 7
Missing number = 7

Start with the top left hand box, and move around the others in a clockwise spiral towards the centre.
Read each box as a pair of 2 digit numbers, one above the other. The sum of the 2 digit numbers in each box follows the sequence 55, 60, 65, 70 and 75. So,

43 + 3X = 75
3X = 32 Thus,
X = 2
Missing number = 2

Logic:
Central Element = (Sum of other 4 element)/4

Thus,
(x + 21 + 16 + 5)/4 = 12
x = 48 - 42
x = 6.
Missing element = 6.

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.