Question
Two cars start from a place with a speed of 20 km/hr at
an interval of 8 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 5 minutes?Solution
Distance covered in 8 minutes at 20 km/hr = 20 x (8/60) Distance covered in 5 minutes at (20 + x) km/hr = (5/60) x (20 + x) Now, Distance covered in 8 minutes at 20 km/hr = Distance covered in 5 minutes at (20 + x) km/hr ⇒ 20 x (8/60) = (5/60) x (20 + x) ⇒ 20 x 8 = 100 + 5x ⇒ 160 = 100 + 5x ⇒ 5x = 160 - 100 = 60 ⇒ x = 12 km/hr
Dinkar Gupta has recently been appointed as the Director-General of the NIA, He was a former DGP of?
___________has taken charge as the Managing Director & CEO of Jammu & Kashmir Bank from December 30, 2021.
When is the first prototype of the Advanced Medium Combat Aircraft (AMCA) expected to be ready?
Where are the headquarters of payment company PhonePe?
IIT Madras and National Institute of Ocean Technology (NIOT), Chennai, are organizing the OCEANS 2022 Conference and Exposition, the bi-annual event for...
Consider the following statements aboutGreen rising initiative:Â
1.   Recently, UNESCO in collaboration with India's Ministry of Environment...
India has signed MoU with which country for Electoral Corporation?
What is the total gold holding of the RBI as of FY25 after the latest gold acquisitions?
According to the Directorate General of Commercial Intelligence and Statistics, the value of rice exports in FY23 rose by more than 15% year-on-year to ...
Who has taken command of the IAF Western Command recently?
Relevant for Exams:
