# Piano

If Suzan practicing 10 minutes at Monday; every other day she wants to practice 2 times as much as the previous day, how many hours and minutes will have to practice on Friday?

Result

x = 2:40 (hh:mm)

#### Solution:

$x = \dfrac16 \cdot 2^{5-1} = 2.667 = 2:40 \ (\text{hh}:\text{mm})$

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