Final answer:
On the second day, they delivered 300 tons of fuel.
Step-by-step explanation:
To solve the problem, we need to set up expressions for the amounts of fuel taken on each day based on the given information:
Let the amount of fuel taken on the third day be x tons.
- On the first day, they took x + 40 tons, since it is given that 40 more tons were taken on the first day than on the third.
- On the second day, they took 3/2 times more fuel than the first day, which means 3/2 × (x + 40) tons.
- The second day's amount is also 9/4 times more than the third day's amount, thus 3/2 × (x + 40) = 9/4 × x.
Solving the equation 3/2 × (x + 40) = 9/4 × x, we get:
- 3/2 × (x + 40) = 9/4 × x
- 6/4 × (x + 40) = 9/4 × x
- x = 160 tons (for the third day)
Then, on the first day it is 160 + 40 = 200 tons.
Finally, on the second day, they took 3/2 × 200 = 300 tons.
Therefore, on the second day, they delivered 300 tons of fuel.