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Class 10 Maths Chapter 3 Pair Of Linear Equations In Two Variables Quiz 4 (25 MCQs)

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1. .If the sum of two number is 41 and their product is 400.then the numbers are
2. The sum of two digits and the number formed by interchanging its digit is 110. If ten is subtracted from the first number, the new number is 4 more than 5 times of the sum of the digits in the first number. Find the first number.
3. If a pair of linear equations is consistent, then the lines will be
4. Represent the following pair of lines graphically.How many solutions are possible for the following pair of lines?4x + 3y = 312x + 9y = 20
5. If x=a, y=b is the solution of the pair of equation x-y=2 and x+y=4 then what will be value of a and b
6. Dependent pair of equations is always .....
7. Graphically, the pair of equations 7x-y = 5; 21x-3y = 10 represents two lines which are
8. What is the solution to the system?8x + 4y = 12y =-2x + 3
9. Solve by elimination method.11x+15y=-23 and 7x-2y=20.
10. If a pair of equation is inconsistent, then the lines will be
11. The value of k, for which the system of equations x + (k + l)y = 5 and (k + l)x + 9y = 8k-1 has infinitely many solutions is
12. There are several human beings and several dogs in a room. One tenth of the humans have lost a leg. The total numbers of feet are 77, then the number of dogs is
13. Is (1, 10) a solution to y=7x+5y=x+9
14. If a system of equations has no solution, what does the graph look like?
15. 3 years ago age of Amaresh is y, what is the age of him 2 years from now
16. For what value of k will pair of equations have no solution? 3x+y=1, (2k-1)x+(k-1)y=2k+1
17. True or False:The pair of equations 3x + 4y = k and 9x + 12y = 6 has infinitely many solutions if k = 3
18. Graphically, the pair of equations 6x-3y + 10 = 0 and 2x-y + 9 = 0 represents two lines which are:
19. One equation of a pair of dependent linear equations is-5x + 7y = 2. The secondequation can be
20. Degree of linear equation is
21. The solution of the equations x + y = 14 and x-y = 4 is
22. Which method is used to find no solution of a pair of linear equations?
23. What does it mean when the lines of a pair of linear equations are parallel?
24. If in the equation x + 2y = 10, the value of y is 6, then the value of x will be
25. The pair of linear equations 2x+3y = 10 and 3x+2y = 10 is( 1 mark )
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