Textbook Page 20 The following table lists the thickness after each fold. Observe that the thickness doubles after each fold. (We use the sign ‘≈’ to indicate ‘approximately equal to’.)After 10 folds, the thickness is just above 1 cm (1.024 cm). After 17 folds, the thickness is about 131 cm (a little more than 4…
Figure it Out – Page 122 1. The sum of four consecutive numbers is 34. What are these numbers?Solution:Let four consecutive numbers be x, (x + 1), (x + 2) and (x + 3).x + (x + 1) + (x + 2) + (x + 3) = 34x + x + 1 + x +…
Textbook Page 165 Figure it Out 1. Circle the following statements of proportion that are true.(i) 4 : 7 :: 12 : 21 (ii) 8 : 3 :: 24 : 6 (iii) 7 : 12 :: 12 : 7 (iv) 21 : 6 :: 35 : 10 (v) 12 : 18 :: 28 : 12(vi)…
Textbook Page 142 1. Observe the multiplication grid below. Each number inside the grid is formed by multiplying two numbers. If the middle number of a 3 × 3 frame is given by the expression pq, as shown in the figure, write the expressions for the other numbers in the grid. Solution: 2. Expand the…
Textbook Page 94 Figure it Out 1. Find all the other angles inside the following rectangles. Solution:(i) ∠1 + ∠9 = 90° ……… (All corner angles of a rectangle are 90°)∠1 + 30° = 90°∠1 = 90° – 30°∠1 = 60° ∠1 = ∠5 = 60°………. (Alternate interior angles)∠9 = ∠4 = 30°………. (Alternate interior…
Textbook Page 51 – 52 The Mechanism of Counting Imagine that we are living in the Stone Age, say, around ten thousand years ago. Suppose we have a herd of cows. Here are some natural questions that we might ask about our herd —Q1. How do we ensure that all cows have returned safely after…
Class 8 Maths Ganita Prakash Chapter 1 A Square and A Cube NCERT Solutions guides students in solving the problems related to the first chapter of Class 8 Maths. Textbook Page 1 – 3 Q. Before the process begins, Khoisnam realises that he already knows which lockers will be open at the end. How did…
Mathematics is a subject that fosters logical thinking, sharpens problem-solving skills, and helps students understand the world around them in a structured manner. The newly published Ganita Prakash textbook is designed to strengthen these foundations through a variety of chapters and exercises. Each chapter in the book plays a crucial role in laying the foundation…