Class 10th math quiz competition

1. The decimal expansion of 22/7 is

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

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

4. 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:

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

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

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

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

9. 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

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

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

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

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

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

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

16. 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:

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

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

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

20. 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: