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17 October, 07:15

Nathaniel can weld a railing in 75 minutes. Brenda can weld a railing 25 minutes faster. How many minutes does it take them to weld the railing if they work together?

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  1. 17 October, 09:22
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    Time taken by Nathaniel for wielding a railing = 75 minutes

    Time taken by Brenda for wielding the same railing = 75 - 25 minutes

    = 50 minutes

    Time taken by both of them together

    to wield the railing = (75 * 50) / (75 + 50)

    = 3750/125

    = 30 minutes

    I hope the procedure is clear enough for you to understand.
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