Question
A man travels some distance at a speed of 16 km/hr and
returns at a speed of 8 km/hr. If the total time taken by him is 3 hrs 45 min, the distance isSolution
Let the distance travelled by a man be D km According to the question, Total time taken = 3 hrs 45 min = 3(45/60) = 15/4 hours Total time = T1 + T2 D/16 + D/8 = 15/4 (2D + 4D)/32 = 15/4 6D/32 = 15/4 D = 20 km
I. 49y2 + 35y + 6 = 0
II. 12x2 + 17 x + 6 = 0
Solve the quadratic equations and determine the relation between x and y:
Equation 1: x² - 36x + 288 = 0
Equation 2: y² - 36y + 320 = 0
I. √(17x) + √51 = 0  Â
II. √(4y) + 3 = 0
I. 4 x ² - 4 x + 1 = 0                              Â
II. 4 y ² + 4 y  + 1 = 0
...I. 64x2 - 64x + 15 Â = 0 Â Â Â Â
II. 21y2 - 13y + 2Â =0
I. 2y2 - 15y + 18 = 0
II. 2x2 + 9x - 18 = 0
I. 3q² -29q +18 = 0
II. 9p² - 4 = 0
I: 3x² - 18x + 24 = 0
II: 5y² + 10y - 15 = 0
(i) 2x² + 14x - 16 = 0
(ii) y² – y – 12 = 0
The following question contains two equations as I and II.You have to solve both equations and determine the relationship between them.
I). 2a²...
