Question

Q16. If the lines represented by 3 X + 2k y= 2 and 2x + 5 y + 1 =0 are parallel then the value of k is
-5/4
2/5
15/4
3/2


Q17. The value of k for which the equations 3 x - y + 8=0 and 6 x -ky + 16 =0 represent coincident lines is
1/2
-1/2
2
-2
Other:


Q18. The age of a woman is four times the age of her daughter .five years hence the age of the woman will be three times the age of the daughter .The present is of the daughter is
40 years
20 years
15 years
10 years
Other:


Q19. The pair 3 x+ 4 y + 2 =0 and 4 x - 5 y +13=0 of linear equation has
A single solution
Two solutions
Infinitely many solutions
No solutions

Q20. The zeroes of the quadratic polynomial x² + 99 X + 127are
Both positive
Both negative
One positive and one negative
Both equal
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Answer 1

Answer:

1 st one is D 2 nd is A 3 rd one is B 4th one is c 5 th one is A