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2009-07-03-Problem Solving (0 viewing) 
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TOPIC: 2009-07-03-Problem Solving
#2232
Huzefa (Moderator)
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2009-07-03-Problem Solving 8 Months, 1 Week ago Karma: 11  
Half the people on a bus get off at each stop after the first, and no one gets on after the first stop. If only one person gets off at stop number 7, how many people got on at the first stop?

(a) 128
(b) 64
(c) 32
(d) 16
(e) 8



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#2248
Vijay (User)
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Re:2009-07-03-Problem Solving 8 Months, 1 Week ago Karma: 3  
64

Go reverse using the answer choice

64 32 16 8 4 2 1
 
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#2268
praghuwa (User)
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Re:2009-07-03-Problem Solving 8 Months, 1 Week ago Karma: 0  
Start Backwards from stop no seven. And double the count at each stop after that.

Stop no : 1 2 3 4 5 6 7

No.Of
People: 64 32 16 8 4 2 1
 
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#2276
PriyaSM (User)
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Re:2009-07-03-Problem Solving 8 Months, 1 Week ago Karma: 0  
b) 64
 
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#2291
Garima (User)
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Re:2009-07-03-Problem Solving 8 Months, 1 Week ago Karma: 0  
(b) 64
 
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#2297
Huzefa (Moderator)
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Re:2009-07-03-Problem Solving 8 Months, 1 Week ago Karma: 11  
Garima, a little explanation alon with your answers would be great!
 
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