Find the area of the surface to be painted if its 8% is 20 cm2.
| May 6, 2021 | education
By the condition of the problem, it is known that 8% of the painted area is 20 cm2, let the entire painted area be 100%. In order to find how many cm2 a completely painted area is, you need to compose and solve the proportion:
8% – 20 cm2,
100% – x cm2,
x = (100 * 20) / 8,
x = 2000/8,
x = 250 cm2 area of the painted surface.
Answer: 250 cm2 area of the painted surface.
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