1.  Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?Look at this series: 58, 52, 46, 40, 34, ... What number should come next?Look at this series: 3, 4, 7, 8, 11, 12, ... What number should come next? 
a.  14267 
b.  152810 
c.  213014 
d.  233215 
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Answer: 152815

2.  Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next? 
a.  14 
b.  15 
c.  21 
d.  23 
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Answer: (b).15

3.  Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?Look at this series: 58, 52, 46, 40, 34, ... What number should come next? 
a.  1426 
b.  1528 
c.  2130 
d.  2332 
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Answer: (b).1528

4.  Look at this series: 8, 22, 8, 28, 8, ... What number should come next? 
a.  9 
b.  29 
c.  32 
d.  34 
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Answer: (d).34

5.  Look at this series: 31, 29, 24, 22, 17, ... What number should come next? 
a.  15 
b.  14 
c.  13 
d.  12 
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Answer: (a).15

6.  Look at this series: 80, 10, 70, 15, 60, ... What number should come next? 
a.  20 
b.  25 
c.  30 
d.  50 
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Answer: (a).20

7.  Look at this series: 2, 6, 18, 54, ... What number should come next? 
a.  108 
b.  148 
c.  162 
d.  216 
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Answer: (c).162

8.  Look at this series: 5.2, 4.8, 4.4, 4, ... What number should come next? 
a.  3 
b.  3.3 
c.  3.5 
d.  3.6 
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Answer: (d).3.6

9.  Look at this series: 8, 6, 9, 23, 87 , ... What number should come next? 
a.  128 
b.  226 
c.  324 
d.  429 
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Answer: (d).429

10.  Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next? 
a.  4.2 
b.  4.4 
c.  4.7 
d.  5.1 
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Answer: (c).4.7
