Question

the weight of an elephant is 4500 kg express it in quintals and grams

Answer 1

1 kg is 1000 grams. Thus, obtain:

$$4500kg = 4500\cdot 1000g = 4500000g$$

1 quintal is 100 kg. Thus, obtain:

$$4500kg = 4500/100 \space quintals = 45\space quintals$$

Answer. 4500000 g and 45 quintals.