In triangle ABC above, if ∠BAD and ∠ADB have measures of 4n°, ∠ACB has a measure of n°, and ∠DBC has a measure of 45°, what is the measure of ∠ABC? (Figure not necessarily drawn to scale.)

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<img alt='Images' src='https://www.fatskills.com/images3/gmat/f0580-01.jpg'><br>In triangle <em>ABC</em> above, if ∠<em>BAD</em> and ∠<em>ADB</em> have measures of 4<em>n</em>°, ∠<em>ACB</em> has a measure of <em>n</em>°, and ∠<em>DBC</em> has a measure of 45°, what is the measure of ∠<em>ABC</em>? (Figure not necessarily drawn to scale.)






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