问题描述：
Ali drove from Town A to Town B at an average speed of 60 km/h.
He took 1 hour and 20 minutes to reach Town B.If he were to increase his speed by 20%,how much time would he save?给个翻译和答案,please.
He took 1 hour and 20 minutes to reach Town B.If he were to increase his speed by 20%,how much time would he save?给个翻译和答案,please.
问题解答：
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