A barrel of oil weighs 120 kg, 20% of which weighs 96.6 kg. The weight of a barrel is 50 g, which is 10% more than that of a gram

A barrel of oil weighs 120 kg, 20% of which weighs 96.6 kg. The weight of a barrel is 50 g, which is 10% more than that of a gram

Oil weight: (120-96.6) △ 20% = 117 kg
Barrel weight: 120-117 = 3kg
50 ÷ (1 + 10%) = 500 g / 11
50 g is 10% more than [11% 500] G
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