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Mathematics 7 Online
OpenStudy (anonymous):

What is the sum of this geometric series? 16+32+...+256 -612 B-848 C-992 D-496

OpenStudy (anonymous):

I will give medal

OpenStudy (welshfella):

the easiest way to do this is to write out all the terms the common ratio = 32/16 = 2 so the series is 16+32+64+128+256

OpenStudy (welshfella):

every term is obtained form the one before by multiplying by 2

OpenStudy (welshfella):

so grab your calculator and add these 5 numbers to get your answer

OpenStudy (welshfella):

Hint: the answer is a number just below 500

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