Which letter replaces the question mark?
R
S
G
K
Correct answer is C
Convert each letter to its numerical value, and read each pair of values as 2 digit numbers. In each row, the number in the centre equals the difference between the 2 digit values on the left and right.
Which letter replaces the question mark?
X
B
K
R
Correct answer is B
In each row of the diagram, the reverse alphabetical value of the central letter equals the sum of the left and right hand digits.
Which number replaces the question mark?
9
6
3
12
Correct answer is C
In each diagram, the numerical value of the left hand letter equals the product of the upper and lower left hand numbers, and the right hand letter equals the product of the upper and lower right hand numbers. The numerical value of the central letter equals the sum of the numerical values of the left and right hand letters.
Which grid replaces the question mark?
A
B
C
D
E
Correct answer is A
Working from left to right, top row then bottom row, the first grid contains a sequence of 2 black dots and a sequence of 3. The next grid contains one of 3 and one of 4. Continue, adding 1 to each sequence every time.
Which symbol replaces the question mark?
Alarm clock
Adaptor
Bulb
None
Correct answer is A
The Alarm clock = 7, the Adaptor = 5 and the Bulb = 2
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