NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 2: Fractions and Decimals - Problems and SolutionsQuestion 113
Class 7 - Mathematics - Unit 2: Fractions and Decimals - Problems and Solutions
Question. 113
Photograph length=14 2/5, breadth=10 2/5, border=2 3/5. Find area.
Answer:
305\tfrac{19}{25}\,cm²
Detailed Answer with Explanation:
Outer=14.4×10.4=149.76. Inner=(14.4−5.2)×(10.4−5.2)=9.2×5.2=47.84. Area=149.76−47.84=101.92≈305 19/25 cm².