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25 August, 12:07

It takes Kelby 10 hours per week to prepare food. Nat can do the same job in 15 hours. How long would it take Kelby and Nat to prepare the food working together?

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  1. 25 August, 12:23
    0
    12hours and 30minutes

    Step-by-step explanation:

    Food Preparae Time by Kelby = 10hrs

    Nat = 15hrs

    Kelby + Nat = ?

    let Kelby + Nat be X

    Kelby + Nat = 2X (because of two person)

    10+15=2X

    25=2X

    X = 12.5hrs

    X=12hrs and 30mins

    It takes 12hours and 30minutues for Kelby and Nat to prepre the food work together.
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