Question

3 flasks cost £18 in total. How much do 5 flasks cost?

Answer 1

To find out how much 5 flasks cost, we can set up a proportion using the total cost of 3 flasks. After solving the proportion, we find that 5 flasks cost £30 in total.

Step-by-step explanation:

To find out how much 5 flasks cost, we can use a proportion using the total cost of 3 flasks. From the given information, we know that 3 flasks cost £18 in total. We can set up the proportion:

(3 flasks)/(£18) = (5 flasks)/(x)

Now we can solve for x, which represents the cost of 5 flasks:

3/£18 = 5/x

Cross-multiplying, we get:

3x = £90

Dividing both sides by 3, we find that x = £30.

Therefore, 5 flasks cost £30 in total.

Answer 2

The cost of one flask is £6, determined by dividing the total cost of three flasks (£18) by 3. Therefore, the cost for five flasks is £30, calculated by multiplying the cost per flask by 5.

Step-by-step explanation:

If 3 flasks cost £18 in total, the cost for one flask can be found by dividing £18 by 3. This gives us the cost of one flask which is £6. To find out how much 5 flasks would cost, we multiply the cost of one flask by 5.

Thus, £6 times 5 gives us the total cost for 5 flasks which is £30.