InterviewSolution
Saved Bookmarks
| 1. |
Nidhi and Ria are very close friends. Nidhi’s parents own a Maruti Alto. Ria’s parents own a Toyota Liva. Both the families decide to go for a picnic to Somnath temple in Gujrat by their own cars. Nidhi’s car travels x km/h while Ria’s car travels 5 km/h more than Nidhi’s car. Nidhi’s car took 4 hrs more than Ria’s car in covering 400 km. Which of the following quadratic equation describe the speed of Nidhi’s car? |
|
Answer» `x^(2) -5x -500=0` `(400)/(x) =(400)/(x+4)+4` `400(x+5) =400x +4x(x+5)` `2000 =4x^(2) +20x` `500=x^(2) +5x` `x^(2) +5x-500=0` Thus (c) is CORRECT OPTION. |
|