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CLASS 10 LINEAR EQUATION IN TWO VARIABLES

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  Access Answers to NCERT Class 10 Maths Chapter 3 – Pair of Linear Equations in Two Variables Exercise 3.1 Page: 44 1. Aftab tells his daughter, “Seven years ago, I was seven times as old as you were then. Also, three years from now, I shall be three times as old as you will be.” (Isn’t this interesting?) Represent this situation algebraically and graphically. Solutions: Let the present age of Aftab be ‘x’. And, the present age of his daughter be ‘y’. Now, we can write, seven years ago, Age of Aftab = x-7 Age of his daughter = y-7 According to the question, x−7 = 7(y−7) ⇒x−7 = 7y−49 ⇒x−7y = −42         ………………………(i) Also, three years from now or after three years, Age of Aftab will become = x+3. Age of his daughter will become = y+3 According to the situation given, x+3 = 3(y+3) ⇒x+3 = 3y+9 ⇒x−3y = 6       …………..…………………(ii) Subtracting equation (i) from equation (ii) we have (x−3y)−(x−7y) = 6−(−42) ⇒−3y...
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CLASS 10 HISTORY The Age of Industrialisation

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  NCERT Solutions for Class 10 History Chapter 4 – The Age of Industrialisation The Solutions for Chapter 4 – The Age of Industrialisation are given below. Students should also check  NCERT Solutions for Class 10  for other subjects. Page No. 102 1. Explain the following: Women workers in Britain attacked the Spinning Jenny In the seventeenth century merchants from towns in Europe began employing peasants and artisans within the villages The port of Surat declined by the end of the eighteenth century The East India Company appointed ‘gomasthas’ to supervise weavers in India Solution: James Hargreaves designed the Spinning Jenny in 1764. This machine speeded up the spinning process and reduced the demand for labour. By the use of this machine, a single worker could turn a number of spindles, and spin several threads at a time. Due to this, many weavers would lose employment. The fearful prospect of unemployment drew women workers, who depended on hand-spinning, to attack t...
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