Question
Speed of a boat in still water to speed of boat in
upstream is 9:5. If the boat can travel 390 km in downstream in 5 hours, then find the time taken by the boat to cover 18 km in still water.Solution
Let speed of boat in still water and speed of boat in upstream be ‘9x’ km/h and ‘5x’ km/h, respectively. Speed of stream = 9x – 5x = 4x km/h Speed of boat in downstream = 9x + 4x = 13x km/h So, 13x = 390/5 = 78 Or, x = 6 Speed of boat in still water = 9 × 6 = 54 km/h Desired time = 18/54 = 20 minutes
Which of the following global e-commerce company becomes world's first listed firm to lose $1 trillion in market cap?
In which type of tax is the marginal tax rate higher than the average tax rate?
India's wholesale price index (WPI)-based inflation in July came in at_________, significantly higher than (-)4.12 percent reported in June on account o...
For grant of Miniratna Category-I status to Central Public Sector Enterprises (CPSEs), the CPSEs have made profit in the last ______ years continuously.
Within the AD-AS model, a phenomenon known as stagflation is best represented by a shift in which curve, and with what consequence for the short-run equ...
Which of the following bank renamed and nationalised as the State Bank of India in 1955?
What does the abbreviation "SIP" stand for in mutual funds?
What is the primary focus of the Priority Sector Lending (PSL) guidelines in India?
What is the minimum capital adequacy ratio required for Indian banks under the Basel III norms?
Canara Bank was nationalized in which of the following year?
