Question
Speed of a boat in still water is three times the speed
of the boat in upstream. If the boat takes 30 minutes to cover 40 km in downstream, then find the speed of the boat in still water.Solution
Let speed of the boat in still water be ‘3x’ km/h. Speed of the boat in upstream = 3x ÷ 3 = ‘x’ km/h Speed of the stream = 3x – x = ‘2x’ km/h Speed of the boat in downstream = 3x + 2x = ‘5x’ km/h ATQ; (40/30) × 60 = 80 So, 5x = 80 Or, x = 16 So, speed of the boat in still water = 3 × 16 = 48 km/h
What is the rank of India in 2022 Environmental Performance Index (EPI)?
Which Five-Year Plan’s realised growth rate was more than the target growth rate?
Who became the first female to be appointed to the ICC International Panel of Match Referees in 2019?
In 1784, who discovered the composition of water through his experiment with hydrogen and oxygen?
World Happiness Report is prepared ______________________.
In 1815, who among the following was appointed as the first Surveyor General of India?
The eSARAS mobile application to support women of Self-Help Groups (SHGs) by marketing products made by them.It is related to which of the following sch...
Which of the following thematic areas under the ‘Deep Ocean Mission’ is being implemented by the Centre for Marine Living Resources?
Which one of the following Naval ships were on deployed to the Indian Ocean region on 'Mission Sagar'?
Where are the printing presses facility of Bharatiya Reserve Bank Note Mudran Pvt. Limited is situated?