Number and Letter Sequence [Series]

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1.) Choose which fraction should be the last digit in the patterns:
5 2/5, 6 2/5, 7 3/20, 7 13/20, 7 9/10, ______
a. 7 15/20
b. 7 18/25
c. 7 31/40
d. 7 33/50
e. 7 1/2

2.) Complete the pattern: V, VIII, XI, XIV, ____ XX.
a. VXII
b. XVII
c. IXV
d. XIX
e. XVI

3.) In the sequence that follows, what number should fill the blank? U32, V29, ____ X23, Y20
a. Z17
b. W23
c. Y29
d. Z26
e. W26

4.) What is the next letter in the series CNL, BLI, AJF, ZHC, ____?
a. XFY
b. XDY
c. XDZ
d. YFZ
e. YFA

5.) In the sequence: ZA5, Y4B, XC6, W3D, _____, what letter and number combination should be on the blank?
a. VE 5
b. E7V
c. E6V
d. V2E
e. VE7

6.) Complete the pattern: 720, 720, 360, ___, 30, 6
a. 180
b. 160
c. 120
d. 140
e. 80