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
Under the “Swasth Nari, Sashakt Parivar Abhiyaan,” India set a Guinness World Record for the most people registering on a health platform in one mon...
The Ministry of Ports, Shipping & Waterways launched MAR-a-THON 2025 at which institute?
The first-ever Investors’ Meet organised in Lakshadweep envisioned investments of approximately how much?Â
What is the projected operational year for India's proposed space station, Bharat Antariksha Station?
The Union government licensed five firms to produce India’s first indigenous malaria vaccine, AdFalciVax. Which of the following is NOT among them? <...
What was the total defence budget allocation in the Union Budget 2026–27?Â
What is India’s digital economy’s contribution to the national income in 2022-23, as per MeitY?
In the Indian Army's "E-SeHAT" module for veterans, what does 'S' signify?
- Who has been appointed as the new chairperson of the Company Law Committee in March 2025?
According to the WTO World Trade Report 2025, adoption of AI could boost global GDP by:Â
Relevant for Exams:
