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31 July, 09:08

c. How much longer does Sana spend in the bathroom than Ali? Mother Showers, washes and dries hair, brushes teeth ¾ hour Father Showers, shaves, brushes teeth 50 minutes Ali Showers, brushes teeth 20 minutes Sana Takes a bath, brushes teeth ½ hour Grand father Showers, shaves 35 minutes Grand mother Takes a bath, brushes teeth 40 minutes

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  1. 31 July, 09:10
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    Sana takes 10 minutes longer than Ali in bathroom

    Step-by-step explanation:

    Given:

    Ali Showers, brushes teeth 20 minutes

    Thus, Ali takes 20 minutes time in bathroom

    Sana Takes a bath, brushes teeth ½ hour

    1 hour has 60 minutes

    1/2 hour has 60/2=30 minutes

    Thus, Sana takes 30 minutes time in bathroom.

    Time, taken more by sana than Ali = 30 minutes - 20 minutes = 10 minutes

    .

    Thus, Sana takes 10 minutes longer than Ali in bathroom.
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