Question
A boat covers a distance of 150 km while moving in a
downstream in 5 hours. When the boat covers a distance of 60 km in still water in 3 hours, then What will be the distance covered by boat (in km) in upstream in 8 hours.Solution
Let the speed of the boat in still water and speed of the stream will be taken as 'x' km/hr & 'y' km/hr respectively. ATQ,we can say that Speed of the boat in downstream = (x + y) = (150/5) = 30km/hr ....(I) Also, 'x' = (60/3) = 20.....(II) So, from equation (II), we can say that 20 + y = 30 Or, y = 10 So, distance covered in upstream will be = (x - y) x 8 = (20 - 10) x 8 = 80km
“ EX VINBAX 2022” military exercise takes place between?
What is the name of the spectrograph NASA is using to study the Sun’s chromosphere?
Which Indian company recently made history by exporting the country's first GI-tagged fig juice to Poland?
What is the planned review year for the Kashi Declaration arising from the Youth Spiritual Summit?
Who has been selected as the National Icon by the Election Commission of India?
What was the main factor contributing to the moderation in bank credit growth to 13.9% in June 2024?
The Central allocation of what amount for AMRUT 2. 0 projects have been distributed among the States/ UTs till now?
Anand Singh, also known as the “UP Tiger”, began his Lok Sabha career in which year?
Which bank has provided a line of credit of Rs 5,000 crore to the PMAY mega housing scheme being developed by CIDCO, thus achieving financial closure?
What role does Justice (Retd.) Sanjaya Kumar Mishra hold in the GST Appellate Tribunal (GSTAT)?