1st term is 50; each sub. is 1/2 prev. term if even, else...  TOPIC_SOLVED

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1st term is 50; each sub. is 1/2 prev. term if even, else...

Postby foood on Sat Dec 31, 2011 9:02 am

The first term in a series of numbers is 50. Each subsequent term is 1/2 the term before it if it was even. or 1/2 rounded up to the next whole number if it is odd. What is the 3rd number in this sequence?

a)13
b)24
c)30
d)40

i dont get this. so, the second number is 45, and the third is 1/2 x 45= 22.5, which would be close to b) 24?
the answer is A.
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  TOPIC_SOLVED

Postby stapel_eliz on Sat Dec 31, 2011 11:25 am

foood wrote:The first term in a series of numbers is 50. Each subsequent term is 1/2 the term before it...

...so, the second number is 45

How are you getting that half of fifty is forty-five? :confused:
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