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

In each row, add together the left and right hand numbers, then add 2 to give the central value.

Start with 1 and move clockwise. Multiply the previous number by 2 and add 4 to give the next number around.

Logic (Row-wise):
Sum of the Even Numbers - Sum of the Odd Numbers = 10.

18 - (7 + x) = 10
- 7 - x = - 8
x = 1.

The values in the segments of the upper middle circle equal the sum of the values in corresponding segments of the upper left and right hand circles.

The values in the segments of the lower middle circle equal the difference between values in corresponding segments of the lower left and right hand circles. So,

12 - 7 = x
x = 5.

As you move left to right the diagram, double each number and subtract 5 to give the next number. So,

Missing number = 21 * 2 - 5 = 37.

In each star, the number in the centre equals the difference between the sum of the even numbers and the sum of the odd numbers around the points of the star. So,

Missing Number = (11 + 9 + 3) - (2 + 4) = 17.

Step 1:
Start From The top row left element and reach to the right element. Add 8 to get second number then subtract 3 to get third number.

Step 2:
Down from right element to Right element of the second row and reach to the left element. Add 8 to get second number then subtract 3 to get third number.

Step 3: Down to the Left row element of the third row and reach to the Right element. Add 8 to get second number then subtract 3 to get third number.

Thus,
Missing Number = 29 - 3 = 26.

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.

Starting From the Top element and moving clockwise.
Sum of the Two consecutive element - 2 = Next Element.

So,
3 + 4 - 2 = Missing Element
Missing Element = 7 - 2 = 5

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.