Step-by-step explanation:
1 ton (or tonne) = 1000 kg
a)
so, a 3-tonne elephant weighs 3000 kg.
3000 = 100%
1% = 100%/100 = 3000/100 = 30 kg
5% = 5×1% = 5×30 = 150 kg
it eats 150 kg per day.
b)
a 4.8-tonne elephant weighs 4800 kg.
4800 = 100%
1% = 100%/100 = 4800/100 = 48 kg
5% = 5×1% = 5×48 = 240 kg
it eats 240 kg per day.