Question
A boat's speed while moving downstream is 60% higher
than its speed while moving upstream. If the boat covers 720 km downstream in 18 hours, determine its speed in still water.Solution
ATQ; Let the speed of the boat in still water and the speed of the stream be ‘x’ km/h and ‘y’ km/h, respectively. Downstream speed of the boat = (x + y) km/h Upstream speed of the boat = (x – y) km/h Downstream speed of the boat = (720/18) = 40 km/h
According to the given condition, (x + y) = 40 ------- (I) And, 40 = 1.6 × (x – y) Or, (x – y) = 40 / 1.6 = 25 -------- (II) By adding equation (I) and equation (II), we get x = 32.5 km/h Therefore, the speed of the boat in still water = 32.5 km/h
Where were the Sagar Bhavan and Polar Bhavan facilities inaugurated?
What type of helicopters can INS Tushil carry?
Premium Payroll Package for the Salary account holders with competitive features has been introduced to meet all Banking requirements of Salaried Cust...
The United Nations Development Programme (UNDP) and the Deendayal Antyodaya Yojana-National Urban Livelihoods Mission (DAY-NULM) entered into a collabor...
The board of the Reserve Bank of India has approved ____ of surplus transfer to the government for 2022-23 and has maintained the contingency risk buf...
Consider the following statement:
I. The G20 Finance Track, led by Finance Ministers and Central Bank Governors of G20 countries.
II. It p...
RBI (Reserve Bank of India) has been organizing the Financial Literacy Week every year to promote financial education across the country. Will it be don...
Lupin Limited has launched its new state-of-the-art Regional Reference Laboratory in ________ as part of the expansion of its diagnostics network.
What is the headquarters of the Asian Infrastructure Investment Bank (AIIB)?
What is the objective of the BharatNet project?
Relevant for Exams:
