A takes 8 hours more than the time taken by B to cover a distance of 160 km. If A doubles his speed. he takes 3 hours more than B to cover the same distance. The speed (in km/h) of B is:
Time taken by A = 8 hours more than B Distance = 160 km A doubles the speed, he takes 3 hours more than B. Let the speed be SA and SB According to the question, ⇒ 160/SA– 160/SB = 8......(1) ⇒ 160/2SA– 160/SB = 3 ⇒ 80/SA– 160/SB= 3 ....(2) Multiplying equation (1) by 1/2 we get, ⇒ 80/SA– 80/SB = 4 .....(3) Now, Substituting equation (2) and (3) we get, ⇒ 80/SA– 160/SB= 3 and 80/SA– 80/SB = 4 ⇒ 160/SB– 80/SB= 4 – 3 ⇒ 80/SB= 1 ⇒ SB= 80 km/h ∴ The speed of B is 80 km/h.
Which documentary film recently won an Oscar, and whose director was awarded ₹1 crore by Tamil Nadu Chief Minister M.K. Stalin?
According to the data provided by the government,which state has emerged as the largest buyer of goods and services among all states and Union Territori...
Indian Navy has partnered with _________ a one-of-its-kind dual-chip debit card that can be used in online mode (as a regular debit card) as well as in ...
Consider the following statements with respect to the new scheme launched by the Cabinet to provide drones to 15,000 women SHGs.
I. The Union...
Nation First Transit Card has been launched to provide seamless and convenient customer commuting experience and ensure easy digital ticketing fare paym...
ADB will give $_________ million loan to support the Government of Tamil Nadu’s Chennai City Partnership: Sustainable Urban Services Programme.
Vipin Sanghi is going to be the chief justice of which high court?
Which sport is set to be included in the 2028 Los Angeles Olympics?
Consider the following statements:
I. Recently ‘Dak Karmayogi’, an e-learning portal of the Department of Posts was developed and ...
When was the Pradhan Mantri Innovative Learning Programme- ‘DHRUV’ launched?
