Reasoning Aptitude
MISSING NUMBER FINDING MCQs
Total Questions : 271
| Page 3 of 28 pages
Answer: Option A. -> 22
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.
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.
Answer: Option B. -> 7
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 (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.
Answer: Option D. -> 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:
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.
Answer: Option B. -> 0
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:
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.
Answer: Option C. -> 4
Logic:
Lower Element = Top element - left element - right Element
Thus,
x = 12 - 5 - 3
x = 4.
Missing number = 4.
Logic:
Lower Element = Top element - left element - right Element
Thus,
x = 12 - 5 - 3
x = 4.
Missing number = 4.
Answer: Option C. -> 5
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:
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.
Answer: Option A. -> 7
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
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
Answer: Option D. -> 6
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:
Central Element = (Sum of other 4 element)/4
Thus,
(x + 21 + 16 + 5)/4 = 12
x = 48 - 42
x = 6.
Missing element = 6.
Answer: Option B. -> 11
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.
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.
Answer: Option A. -> 2
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
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
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