Final answer:
The selling price after a 40% markup on the original cost of AED 600, we multiply the cost by 0.40 to get the markup amount (AED 240), then add it to the original cost to get the selling price, which is AED 840.
Step-by-step explanation:
The question asks us to determine the selling price of a painting after a 40% markup on its original cost of AED 600. To calculate the selling price, we first find the amount of markup by multiplying the original cost of AED 600 by the markup percentage, which is 40%. The markup amount calculation is as follows:
0.40 × 600 = 240
After calculating the markup amount, we add this to the original cost to find the selling price:
600 + 240 = 840
Therefore, the selling price of the painting after a 40% markup is AED 840.