Class 10th math quiz competition

1. The pair of equations 5x – 15y = 8 and 3x – 9y = 24/5 has

2. The father’s age is six times his son’s age. Four years hence, the age of the father will be four times his son’s age. The present ages, in years, of the son and the father are, respectively

3. The pairs of equations x+2y-5 = 0 and -4x-8y+20=0 have:

4. For some integer n, the odd integer is represented in the form of:

5. The pair of equations x + 2y + 5 = 0 and –3x – 6y + 1 = 0 have

6. A pair of linear equations which has a unique solution x = 2, y = -3 is

7. The decimal expansion of 22/7 is

8. If a pair of linear equations is consistent, then the lines are:

9. Mohan can row downstream 20 km in 2 hours, and upstream 4 km in 2 hours. Her speed of rowing in still water and the speed of the current is:

10. A fraction becomes 1/3 when 1 is subtracted from the numerator and it becomes 1/4 when 8 is added to its denominator. The fraction obtained is:

11. The number of polynomials having zeroes as -2 and 5 is:

12. If one equation of a pair of dependent linear equations is -3x+5y-2=0. The second equation will be:

13. The pairs of equations 9x + 3y + 12 = 0 and 18x + 6y + 26 = 0 have

14. If p(x) is a polynomial of degree one and p(a) = 0, then a is said to be:

15. The graphical representation of a pair of equations 4x + 3y – 1 = 5 and 12x + 9y = 15 will be

16. If the pair of linear equations has a unique solution, then the lines representing these equations will

17. The value of c for which the pair of equations cx – y = 2 and 6x – 2y = 3 will have infinitely many solutions is

18. The probability of event equal to zero is called;

19. The solution of the equations x-y=2 and x+y=4 is:

20. Zeroes of a polynomial can be expressed graphically. Number of zeroes of polynomial is equal to number of points where the graph of polynomial is: