Question 1144692
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(1) Using logical reasoning....<br>
The husband started with $30 and tripled his money 4 times.
The wife finished with the same amount as her husband but tripled her money only 3 times.
Since she finished with the same amount but tripled her money one time less, she must have started with 3 times as much.<br>
ANSWER: $90<br>
(2) Using formal algebra....<br>
The man started with 30 and finished with 30*(3^4).
The woman started with x and finished with x*(3^3).
They finished with the same amount:<br>
{{{30*3^4 = x*3^3}}}
{{{x = (30*3^4)/(3^3) = 30*3 = 90}}}