Discussion of Question with ID = 097 under Distance-and-Time

This is the discussion forum for this question. If you find any mistakes in the solution, or if you have a better solution, then this is the right place to discuss. A healthy discussion helps all of us, so you are requested to be polite and soft, even if you disagree with the views of others. The question and its current solution has also been given on this page.



Speeds of A and B are in the ratio 7 : 19. What is the ratio of the times that they will take to cover a distance of 100 km?


19 : 7.


7 : 19.


19 : 100.


100 : 7.

Ans: a

Let the speeds be 7x and 19x. The times they take to cover 100 km are $100/{7x}$ and $100/{19x}$. The ratio would be 19 : 7.

Comments and Discussion