Question
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:Solution
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
The government has extended the PLI scheme for auto sector by a year with partial amendments. Consider the following statements with respect to the stat...
Sanket Mahadev Sargar won the gold medal in the Men's ___kg snatch category at the ongoing Commonwealth Weightlifting Championships 2021 in Tashkent.
What is the theme for World Bee Day 2024?
Recently France’ s Naval Group and _____extend R&D deal for underwater surveillance, submarine imaging?
Which institution is commonly known as the "lender of last resort"?
Samvardhana Motherson International (Samil) has signed an agreement to acquire Germany-based Dr Schneider Group for _______ as part of its diversificati...
The Reserve Bank of India has tweaked norms for the issuance of commercial papers (CPs) and non-convertible debentures (NCDs) of up to one year to regul...
What is the primary objective of the Study in India (SII) Portal launched by the Union Education and Skill Development & Entrepreneurship Ministers?
...The Trusted Tour Operator Scheme (TTOS) introduced by South Africa is primarily aimed at boosting tourism from which two countries?
What is the objective of the digital education project in the Galle District, supported by the Government of India?