Question
Speed of a boat in still water to speed of boat in
upstream is 12: 7. If the boat can travel 425 km in downstream in 5 hours, then find the time taken by the boat to cover 30 km in still water.Solution
Let speed of boat in still water and speed of boat in upstream be ‘12x’ km/h and ‘7x’ km/h, respectively. Speed of stream = 12x – 7x = 5x km/h Speed of boat in downstream = 12x + 5x = 17 km/h So, 17x = 425/5 => x = 5 Speed of boat in still water = 12 × 5 = 60 km/h Desired time = 30/60 x 60 = 30 minutes
World tribal day is celebrated on _____________ ?
Which of the following states have only one representatives each in Lok Sabha?
Consider the following statements:
1.   Sangama dynasty was the first dynasty to rule over Vijayanagar kingdom
2.   Sriranga III w...
In the context of Inflation, consider the following statements:
1. Laspeyre Index is used for the calculation of the Wholesale Price Index.
<...The Vice President of India is elected by the members of an electoral college consisting of __________.
Who said that ‘Education is the manifestation of perfection already in man’?
When we are travelling in a bus, we tend to move forward when the bus is stopped suddenly. This is because of ________.
The Jahangir Mahal at Agra was bunt by
Which Indian state has chosen to rename its jails as "reform homes"?
Which one of the following was not recommended in Macaulay's 1835 Minute on Education?
Relevant for Exams:
