NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 9: Perimeter and Area - Problems and Solutions
Question 121

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.

NCERT Exemplar Solutions Class 7 – Mathematics – Unit 9: Perimeter and Area – Problems and Solutions | Detailed Answers