Vito uses 9 liters of water to water 24 flower pots. He is wondering how many liters of water (w) would it take to water 40 flower pots. He assumes he'll use the same amount of water on each pot. How many liters of water does it take to water 40 flower pots?

Vito uses 9 liters of water to water 24 pots, or 9/24 = 0.375 liters of water per pot.

So it would take 40 * 0.375 = <<40*0.375=15>>15 liters of water to water 40 flower pots. Answer: \boxed{15}.

To find out how many liters of water it would take to water 40 flower pots, we can set up a proportion based on Vito's previous experience.

Let's assume the amount of water required per flower pot is the same in both cases.

We know that:
9 liters of water is needed for 24 flower pots

To find out how many liters of water is needed for 40 flower pots, we can set up the following proportion:

9 liters / 24 flower pots = w liters / 40 flower pots

To solve for w, we can cross-multiply and then divide:

24w = 9 * 40

24w = 360

w = 360 / 24

w = 15

Therefore, it would take 15 liters of water to water 40 flower pots.

To determine the amount of water (w) needed to water 40 flower pots, we can set up a proportion using the given information.

We know that Vito uses 9 liters of water to water 24 flower pots. We can express this as a ratio:

9 liters / 24 pots = w liters / 40 pots

To find the unknown value w, we can cross-multiply:

9 liters * 40 pots = 24 pots * w liters

360 liters = 24w

Now, we can solve for w by dividing both sides of the equation by 24:

360 liters / 24 = w

15 liters = w

Therefore, it would take 15 liters of water to water 40 flower pots.