Downstream speed of a boat is (8/7)th of the speed of the boat in still water. Find the time taken by the boat to cover 280 km downstream if it covers 210 km upstream in 7 hours.
ATQ, Let the downstream speed of the boat and speed of the boat in still water be 8x km/hr and 7x km/hr, respectively. Therefore, speed of the stream = downstream speed - speed of the boat in still water Speed of stream Speed of stream = 8x−7x = x km/hr And, upstream speed of the boat = speed of the boat in still water - speed of stream Upstream speed Upstream speed=7x − x = 6x km/hr Given: 
So, downstream speed of the boat: 8x = 8×5 = 40km/hr Required time: 
Union Home Minister Amit Shah inaugurated three floating BOPs (border outposts) in the riverine border areas of West Bengal. What are the names of the B...
The Institute of Chartered Accountants of India set up by an act of parliament to regulate the profession of Chartered Accountants in India in the year_...
Who made the first chocolate bar?
Which part of the Constitution of India incorporates the Directive Principles of State Policy?
Which one of the following is India’s largest Butterfly?
_____ is a group of hunter gatherers native to Central Africa, mainly to Congo.
Vallabhbhai Patel and ________ helped Gandhi in Kheda by organising his tour of the villages and urging the peasants to stand firm against the government.
The First Commonwealth Games were organised in which of the following years?
Having opened its Twitter account in _______, the Reserve Bank of India had more than 1 million followers on its official Twitter handle by November 2020.
Which of the following savings schemes provides the highest interest rate as of June 2023?
