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Verified answer
=(adi × budi )/(adi + budi)=(2×4)/2+4)
=8/6jam
= 8/6 ×60 menit
= 80 menit atau 1 jam 20 menit
semoga membantu:)
1/x = 1/2 + 1/4
1/x = 2/4 + 1/4 (penyebut disamakan)
1/x = 3/4 (kali silang)
x = 4/3
= 1 1/3 jam (1 jam 20 menit)