Let the stool height be h and the cat height be c. The diagrams give h + c = 85 and h − c = 25. Adding both equations gives 2h = 110, which results in a stool height of h = 55 cm.
Cbse released Class 9 Ganita Manjari Part 2 book
Chapter 13 Two Variables, One Line (Ganita Manjari 2) Solutions
Let h denote the height of the stool and c denote the height of the cat in centimetres. From the first diagram, the cat sits atop the stool, giving h + c = 85. In the second diagram, the stool’s height exceeds the ground-standing cat’s head by 25 cm, giving h − c = 25. Adding these two linear equations cancels c, producing 2h = 110, which determines that the stool is 55 cm high.
For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 13 Two Variables, One Line Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-13/