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LogicalApple
 one year ago
Best ResponseYou've already chosen the best response.1If we bring the 12 to the front we get a sum of 1/4^i. Our first term, a = 1/4 and our common ratio is 1/4 since each consecutive term is 1/4th of the previous. Using our equation we can get the summation as S = a / (1  r) = 1/4 / (1  1/4) Then we multiply this by the 12 we brought out earlier. Our final solution is 12 * 1/4 / (1  1/4) What do you get?

LogicalApple
 one year ago
Best ResponseYou've already chosen the best response.1Yes that's what I got

matricked
 one year ago
Best ResponseYou've already chosen the best response.1for sum of infinite GP S=a/(1r) here a=3 and r=1/4 hence S=12/(11/4) =4

matricked
 one year ago
Best ResponseYou've already chosen the best response.1it is 4 (not 16 as i hv earlier mentioned)
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