Final answer:
To find the cost of 20 apples, we need to determine the cost of one apple first. By setting up a ratio, we can find that the cost of one apple is 2/3 Dhs. Multiplying this by 20 gives us the cost of 20 apples, which is 13.33 Dhs.
Step-by-step explanation:
To find the cost of 20 apples, we need to determine the cost of one apple first. Since the cost of 15 apples is equal to the cost of 12 oranges, we can set up a ratio: 15 apples / 12 oranges = 1 apple / 2 Dhs. Simplifying the ratio, we get 5 apples / 4 oranges = 1 apple / (2/3) Dhs.
To find the cost of one apple, we'll multiply both sides of the equation by (2/3): 5 apples / 4 oranges * (2/3) = 1 apple / (2/3) Dhs * (2/3). This simplifies to 10/12 = 2/3 Dhs.
Now, we can determine the cost of 20 apples by multiplying the cost of one apple by 20: 2/3 Dhs * 20 = 40/3 Dhs = 13.33 Dhs.
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