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Eric practiced piano and guitar for a total of 8 hours this week. he practiced the piano for 1/4 of that time.how many hours did Eric practice the piano this week ?

Answer :

3022268919
Piano (p) 
Guitar (g)

p+g=8
p=8(1/4)
8*1/4=2

So, Eric practices the piano for 2 hrs.

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