NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 9: Perimeter and Area - Problems and SolutionsQuestion 121
Class 7 - Mathematics - Unit 9: Perimeter and Area - Problems and Solutions
Question. 121
Ramesh grew wheat in a rectangular field that measured 32 m long and 26 m wide. This year he increased the area for wheat by increasing the length but not the width. He increased the area of the wheat field by 650 m². What is the length of the expanded wheat field?
Answer:
The length of the expanded wheat field is 57 m.
Detailed Answer with Explanation:
Old area = \(32 \times 26 = 832\,m^2\). Increased area = 832 + 650 = 1482. New length = 1482 ÷ 26 = 57 m.