NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 9: Perimeter and Area - Problems and SolutionsQuestion 111
Class 7 - Mathematics - Unit 9: Perimeter and Area - Problems and Solutions
Question. 111
Carpet = 5 m × 2 m, border 25 cm. Find blue area and ratio red:blue.
Answer:
Blue = 6.75 m², Ratio = 13:27
Detailed Answer with Explanation:
Outer area = 10 m², inner (4.5 × 1.5 = 6.75 m²).
Red = 3.25 m², ratio = 13:27.