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5 November, 05:03

Two old rsm students were standing twenty feet apart when they spotted mrs. rifkin. if they immediately run in opposite directions with speeds of 180 feet per minute and 120 feet per minute respectively, how many minutes will pass before they are 2,420 feet apart?

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  1. 5 November, 06:49
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    Speed of student A is 180 ft/min

    Speed of student B is 120 ft/min

    Relative speed = (120+180) = 300 ft/min

    Distance between them is 2420 ft

    Time taken for them to meet will be:

    time=distance/speed

    = (2420-20) / 300

    =8 min
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