A flight has to travel between 2 cities A and B, 2000 km apart. The flight was slowed down due to bad weather. Its average speed for the trip reduced by 200 km/hr and the time of flight increased by 30 min. The duration of the flight with original speed is:
According to question, => (2000/t) – (2000/(t+1/2)) = 200 => (10/t) – (10/(t+1/2)) = 1 => (1/t) – (1/(t+1/2)) = 1/10 => 10 = 2t2 + t => 2t2 + t – 10 = 0 => 2t2 + 5t – 4t – 10 = 0 => t(2t + 5) – 2(2t + 5) = 0 => (2t + 5) (t – 2) = 0 => t = -5/2, 2 (time is not possible in negative) Required time = 2 hours
On which river is the Shivanasamudra Waterfalls situated?
Who has received the ‘Patangrao Kadam Award’?
Who has been appointed as the next Chief of the Indian Army, effective from June 30, 2024?
World Ozone Day is observed annually on?
In Uttar Pradesh, 'Mid-day-Meal' programme was launched in the year?
Election Commission launched 'Mission-929' in which state?
Faiyaz Khan is associated with which musical instrument?
The Ministry of Defense has approved the purchase of military equipment abroad, by the three banks, name them?
Who was given the title 'Rashtra Kavi' by Mahatma Gandhi?
Which author won the Sahitya Akademi Yuva Puraskar for her memoir "Homeless: Growing up Lesbian and Dyslexic in India"?