Mathematics, 24.03.2021 06:20 1846252

Ron and Kaili ran a 400-meter race. Ron's time was 1 minute 51 seconds and Kaili's time was 2 minutes 34 seconds. How much faster was Ron's time than Kaili's?

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Ron and Kaili ran a 400-meter race. Ron's time was 1 minute 51 seconds and Kaili's time was 2 minute...

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