Answer:
Step-by-step explanation:
Since one triangle is inscribed in another, the two triangles are similar. As marked in the diagram, the sides of the larger triangle are exactly two times larger than the corresponding sides of the smaller triangle.
Therefore, we have:
Since AC is marked by :
Answer:
Option C: 126
Step-by-step explanation:
Total displays to be assembled = 280
25% of the displays are assembled during the first hour, this value becomes:
Remaining displays =
40% of the remaining displays during the second hour, the value becomes:
Hence, number of displays that will not have been assembled by the end of the second hour =
Therefore, the answer is 126.