Puzzles number

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Number puzzle

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A
6
B
47
C
2
D
21
Question 1 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.
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A
45
B
20
C
16
D
41
Question 2 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.
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A
53
B
97
C
4
D
50
Question 3 Explanation: 
In each row of the diagram, the sum of the left and right hand digits, minus the central digit is always 8.
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A
8
B
29
C
28
D
11
Question 4 Explanation: 
Divide the circle, horizontally and vertically, to give 4 quarters. The sum of the numbers in the segments of each quarter equals 11.
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A
5
B
44
C
36
D
6
Question 5 Explanation: 
Working through the diagram in rows, and reading each row as a whole number, the diagram represents a subtraction sum : 203 - 7 = 196
There are 5 questions to complete.