Answer:
20 years.
Step-by-step explanation:
Let x represent number of years.
We have been given that a baby elephant has a mass of 105 kg, the baby elephant increases in mass by 95 kg per year.
The mass of baby after x years would be .
The total mass of baby after x years would be .
We know 1 metric tom equals 1000 kg, so 2 metric ton equals 2000 kg.
Now ,we will equate total mass of elephant by 2000 and solve for x as:
Therefore, it will take 20 years for the baby elephant's mass to increase 2 tonnes.