Question
Two cars start from a place with a speed of 60 km/hr at
an interval of 15 minutes. What is the speed of a man coming from the opposite direction towards the place if he meets the cars at an interval of 12 minutes?Solution
Distance covered in 15 minutes at 60 km/hr = 60 x (15/60) Distance covered in 12 minutes at (60 + x) km/hr = (12/60) x (60 + x) Now, Distance covered in 15 minutes at 60 km/hr = Distance covered in 12 minutes at (60 + x) km/hr ⇒ 60 x (15/60) = (12/60) x (60 + x) ⇒ 60 x 15 = 720 + 12x ⇒ 900 = 720 + 12x ⇒ 12x = 900 - 720 = 180 ⇒ x = 15 km/hr
Which states were the partner states for the '38th Surajkund International Crafts Mela'?
What is the name of the first ritual observed on the initial day of Chhath Puja?
- The Meenakari art form is most closely associated with which Indian city?
How many fundamental rights were provided originally by the Indian Constitution in 1950?
- Which Indian organization received the "Asia Environment Enforcement Awards, 2018"?
The government is going to make relevant changes in the Insolvency and Bankruptcy Code (IBC) to consider insurers as financial creditors in case of defa...
- The folk dance "Jat-Jatin" is traditionally associated with which Indian state?
- Which of the following pairs (Rebellion - Year) is incorrectly matched?
"Sunny Days" is a book written by whom?
Chandubi Festival is celebrated in which Indian State?
Relevant for Exams:
