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                                                                                   Guess is more important than calculation --- Knowhowacademy.com

Problem Num : 1 Type: Understanding Section:Sequence  Theme:None Adjustment# : 2 Difficulty: 600 level
Category	Geometric Sequence
Analysis	Plug in the number into the nth term.
Solution/Answer	5th term is 5+2^4 6th term is 6+2^5 Answer: E

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Problem Num : 2 Type: Understanding Section:Sequence  Theme:None Adjustment# : 5 Difficulty: 700 level
Category	Geometric Sequence
Analysis	Follow the rule carefully. Write down traveling distance.
Solution/Answer	8+4+4+2+2+1= Answer: A

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Problem Num : 3 Type: Mathematical Reading Section:Sequence  Theme:None Adjustment# : 20 Difficulty: 700 level
Category	Geometric Sequence
Analysis	Just plug in. From r*n<100, if we know r value, then we can solve it for n.
Solution/Answer	(1)r*50=500 (2)r*100+r*105=2,050 Both conditions are enough to find r. Answer: D

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Problem Num : 4 Type: Mathematical Writing Section:Sequence  Theme:Set Variables Adjustment# : 20 Difficulty: 700 level
Category	Geometric Sequence
Analysis	The rule: increased by same factor.
Solution/Answer	x=10*r 14.4=x*r need to find the r. 14.4=10*r^2 r^2 = 144/100. r=12/10 x=12 Discussion: 14.4 can be given as 16.9 Answer: A

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Array ( [0] => 4786 [1] => 6071 [2] => 4891 [3] => 4692 ) 4