Page 36 - MergedFile
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Answer. a
5. 81, 27, 9, 3, ?
a. 1
b. 2
c. 3
d. 4
Solution. (1): each number in regression is divided by 3.
Answer. a
6. 25, 5, 16, 4, 9, ?
a. 6
b. 2
c. 1
d. 3
Solution. (3): Divide into sets of two numbers. The second number is the square root of the number.
Answer. d
7. 9, 5, 6, 8, 4, 5, 7, 3,?
a. 1
b. 2
c. 3
d. 4
Solution. (4): divide into sets of 3 numbers. From the first number subtract 4 then add 1 to get the third number.
Answer. d
8. 2, 3, 5, 3, 4, 7, 4, 5, ?
a. 4
b. 7
c. 8
d. 9
Solution. (9): divide into sets of 3 numbers. The sum of the first two numbers equals the third number.
Answer. d
9. 2, 13, 4, 11, 6, 9, ?
a. 5
b. 8
c. 10
d. 17
