## Pair of Linear Equations

### Important Questions

Q) Using graphical method, find whether following system of linear equations x = 0 and y = – 7 is consistent or not. Ans:  Draw…

Q) Two pipes together can fill a tank in hours. The pipe with larger diameter takes 2 hours less than the pipe with smaller diameter…

Q) A train travels at a certain average speed for a distance of 54 km and then travels a distance of 63 km at an average…

Q) Two people are 16 km apart on a straight road. They start walking at the same time. If they walk towards each other with different…

Q) Two schools ‘P’ and ‘Q’ decided to award prizes to their students for two games of Hockey Rs. x per student and Cricket Rs. y…

Q) If 217x + 131y = 913 and 131x + 217y = 827, then solve the equations for the values of x and y. Ans: 217…

Q) If the system of linear equations 2x+3y= 7 and 2ax + (a + b) y = 28 have infinite number of solutions, then find…

Q)Jaya scored 40 marks in a test getting 3 marks for each correct answer and losing 1 mark for each incorrect answer., Had 4 marks…

Q)Solve the pair of equations x = 5 and y = 7 graphically. Ans:  Plot both the equations on the graph. Increase till intersection point…