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CBSE Class 9 Answered

Can I get some hard word problems from linear equation in two variables 
Asked by Muruga | 22 Feb, 2018, 06:33: AM
answered-by-expert Expert Answer
1) A fraction is such that if the numerator is multiplied by 3 and the denominator is reduced by 3, we get 15. Write linear equation to represent this information and also draw graph of the linear equation.
 
2) The taxi fare in a city is as follows: For the first kilometer, the fare is Rs.  8 and for the subsequent distance it is Rs, 5 per km. Taking the distance covered as x km and total fare as Rs.y. write a linear equation for this information, and draw its graph.

3) If the work done by a body on application of a constant force is directly proportional to the distance travelled by the body, express this in the form of an equation in two variables and draw the graph of the same by taking the constant force as 5 units. Also read from the graph the work done when the distance travelled by the body is 2 units.
 
4) 4 years ago, age of a mother was 3 times the age of her daughter. Write a linear equation to represent this situation and draw its graph.
Answered by Rashmi Khot | 22 Feb, 2018, 09:47: AM
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