Two-fifths 5337

The triangle is divided into three parts. The part at the vertex C occupies a third of the area of the triangle, the part at the vertex B is two-fifths of the area of the triangle, and the remaining part at the vertex A has an area of 4 m². Calculate the area of triangle ABC in m².

Correct answer:

X =  15 m²

Step-by-step explanation:

$$\begin{gathered} X/3+\frac{2}{5}\cdot X+4=X \\ X/3+2/5\cdot X+4=X \\ 4X=60 \\ X=\frac{60}{4}=15 \\ X=15=15{\text{m}}^2 \end{gathered}$$

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