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Ex 4.1 Class 9 Maths Question 1.The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement.(Take the cost of a notebook to be Rs. x and that of…
Ex 3.1 Class 9 Maths Question 1.How will you describe the position of a table lamp on your study table to another person?Solution:To describe the position of a table lamp placed on the table, let us consider the table lamp…
Ex 2.1 Class 9 Maths Question 1.Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.(i) 4×2 – 3x + 7(ii) y2 + √2(iii) 3 √t + t√2(iv) y+ 2y(v) x10+ y3+t50Solution:(i) We have…
Ex 1.1 Class 9 Maths Question 1.Is zero a rational number? Can you write it in the form pq,where p and q are integers and q ≠0?Solution:Yes, zero is a rational number it can be written in the form pq.0 = 01 = 02 = 03 etc. denominator…
NCERT Solutions for Class 9 Maths – Class 9 Maths NCERT Solutions Chapter 1 Number systems Click Here Chapter 2 Polynomials Click Here Chapter 3 Coordinate Geometry Click Here Chapter 4 Linear Equations in Two Variables Click Here Chapter 5…
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NCERT Book for Class 9 Science Chapter-wise in English Chapter 1 – Matter in Our Surroundings Solution Chapter 2 – Is Matter Around Us Pure? Solution Chapter 3 – Atoms and Molecules Solution Chapter 4 – Structure of the Atom …
Improvement in Food Resources Class 9 – NCERT Science Solutions Intext Questions 1 Question 1 What do we get from cereals, pulses, fruits and vegetables? Answer Cereals — Carbohydrates Pulses — Proteins Fruits and vegetables — vitamins and minerals in addition to small…
Sound Class 9 – NCERT Science Solutions Intext Questions 1 Question 1 How does the sound produced by a vibrating object in a medium reach your ear? Answer Sound moves through a medium from the point of generation to the…
Work and Energy Class 9 – NCERT Science Solutions Intext Questions 1 Question 1 A force of 7 N acts on an object. The displacement is, say 8 m, in the direction of the force. Let us take it that…