Final answer:
To find the mass of 20 buckets of gravel, we multiply the mass of one bucket by 20. The mass of one bucket in kilograms is 2050 kg. Therefore, the mass of 20 buckets is 41,000 kg.
Step-by-step explanation:
To find the mass of 20 buckets of gravel, we need to multiply the mass of one bucket by 20. Given that one bucket of gravel has a mass of 2.05 ko, we can convert it to kilograms by multiplying by 1000. So, the mass of one bucket in kilograms is 2.05 * 1000 = 2050 kg. To find the mass of 20 buckets, we multiply the mass of one bucket by 20: 2050 kg * 20 = 41,000 kg.