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Question Number 47280 by KMA last updated on 07/Nov/18

A geometric progression bas three  terms a ,b ,c whose sum is 42.If 6  is added to each of the firs two term  and 3 to the third ,a new G.P. result  whose first term is the same as n.  Find a,band?c.

$${A}\:{geometric}\:{progression}\:{bas}\:{three} \\ $$$${terms}\:{a}\:,{b}\:,{c}\:{whose}\:{sum}\:{is}\:\mathrm{42}.{If}\:\mathrm{6} \\ $$$${is}\:{added}\:{to}\:{each}\:{of}\:{the}\:{firs}\:{two}\:{term} \\ $$$${and}\:\mathrm{3}\:{to}\:{the}\:{third}\:,{a}\:{new}\:{G}.{P}.\:{result} \\ $$$${whose}\:{first}\:{term}\:{is}\:{the}\:{same}\:{as}\:{n}. \\ $$$${Find}\:{a},{band}?{c}. \\ $$

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