Question

Tolonggg nomer 33 :"

Answer 1

Verified answer

→ Mapel : Math
→ Materi : Waktu
→ Bab : Perbandingan
————————————————

Waktu yang diperlukan
= ( 18 x 12 ) / ( 18 + 12 )
= 216 / 30
= 7,2 jam

Maka :
= 7,2 jam
= 432 menit
= 7 jam 12 menit
Opsi B

Answer 2

1/45 + 1/30 = 2+3/90
= 5/90
= 90/5
= 18 hr