A. 9
B. 4
C. 5
D. 6
Answer & Explanation:
Answer
: 6
Explanation
:
Looking
at the diagram in rows, the central circle equals half the sum of the numbers
in the other circles to the left and right of the centre.
A. 9
B. 8
C. 4
D. 1
Answer & Explanation:
Answer
: 9
Explanation
:
The
number at the centre of each triangle equals the sum of the lower two numbers
minus the top number.
A. 23
B. 9
C. 19
D. 31
C. 19
D. 31
Answer & Explanation:
Answer
: 19
Explanation
:
As
you move diagonally down, numbers follow the sequence of Prime Numbers.
A. 16
B. 37
C. 55
D. 2
C. 55
D. 2
Answer & Explanation:
Answer
: 16
Explanation
:
Starting
bottom left and moving clockwise around the triangle, numbers follow the
sequence of Square Numbers.
A. 33
B. 37
C. 39
D. 46
C. 39
D. 46
Answer & Explanation:
Answer
: 39
Explanation
:
Working
from top to bottom, double each number and subtract 1, then 2, then 3 etc.
A. 4
B. 7
C. 9
D. 11
C. 9
D. 11
Answer & Explanation:
Answer
: 4
Explanation
:
Working
in columns, the sum of the numbers in each column is always 14.
A. 7
B. 9
C. 6
D. 1
C. 6
D. 1
Answer & Explanation:
Answer
: 6
Explanation
:
The
numbers in each row and column add up to 15.
A. 44
B. 40
C. 31
D. 21
C. 31
D. 21
Answer & Explanation:
Answer
: 40
Explanation
:
Moving
from left to right, numbers increase by 2,3,4 and 5.
A. 9
B. 34
C. 21
D. 11
C. 21
D. 11
Answer & Explanation:
Answer
: 9
Explanation
:
In
each square of the diagram, the sum of the numbers is always 22.
A. 12
B. 16
C. 23
D. 34
C. 23
D. 34
Answer & Explanation:
Answer
: 16
Explanation
:
Moving
clockwise, around alternate segments in the chain, one sequence decreases by 1,
2, 3 and 4 each time, while the other increases by 2, 3, 4 and 5.
A. 7
B. 5
C. 1
D. 9
Answer & Explanation:
Answer
: 1
Explanation
:
Reading
each pair of numbers as a 2 digit number, they follow the sequence of square
numbers from 6 to 9
A. 6
Answer & Explanation:
Answer
: 7
Explanation
:
Taking
the top row of circles, numbers in the central circle equal the sum of the
numbers in corresponding segments of the left and right hand circles. In the
bottom row, numbers in the central circle equal the difference between numbers
in corresponding segments of the left and right hand circles.
A. 111
Answer & Explanation:
Answer
: 253
Explanation
:
Starting
at the top left, and moving through the diagram in a Z shape, double each
number and add 3 to give the next number along.
A. 32
Answer & Explanation:
Answer
: 51
Explanation
:
Moving
to the right, double each number and subtract 3 to give the next number along.
Answer & Explanation:
Answer
: 2
Explanation
:
Starting
with the 10 at the top, one set of numbers increases by 3 each time, written in
alternate boxes as you move down the diagram, and the other set of numbers
decreases by 2, written in the boxes remaining.
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