2/5 dari berat badan devi adalah 12kg.1/2 dari berat badan devi

2/5 x BB. Devi = 12 kg
BB.Devi = (12 x 5) / 2
BB.Devi = 60/2
BB.Devi = 30 kg

1/2 x BB.Devi
= 1/2 x 30
= 15 kg

2/5 = 12
5/2×12 = 30
Berat badan Evi = 30 kg
1/2×30 = 15 kg.
jawab = 15 kg.

Semoga membantu.