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#1 Re: Ganesh's Puzzles » Average » 2010-04-18 19:15:38

The weight of person A is 72.

#2 Re: Ganesh's Puzzles » Logarithms » 2010-04-18 19:06:39

log a = 2log x + 3log y

b = log x – log y

log a + 3 b = 5log x

loga - 2b = 3logy + 2logy = 5logy

logx / logy = (loga+3b) / (loga-2b)

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