Question
A boat moves at 40 km/hr downstream and 10 km/hr
upstream. How long will it take to cover 150 km in still water?Solution
ATQ,
Let the boat’s speed in still water be x km/hr, and current speed be y km/hr. Then: Downstream speed = x + y = 40 ......(1) Upstream speed = x - y = 10 ......(2) Adding (1) and (2): x + y + x - y = 40 + 10 → 2x = 50 → x = 25 km/hr Time to travel 150 km in still water = 150 / 25 = 6 hours
What does the economic term 'Cross Demand' relate to?
Who is responsible for setting the Cash Reserve Ratio (CRR) in India?
An increase in demand for a good will cause the equilibrium price to ______ and the equilibrium quantity to ______.Â
When do we observe the National Youth Day every year?
What does the “C” stand for in LCR?
Capital employed is:
The Lorenz curve is used to display which of the following?
SANKALP Scheme is one of the important skill development programme sponsored by World Bank which is under implementation till_______.
What is the essence of 'barter' in economic transactions?
Which of the following is NOT a feature of the manufacturing sector in India?Â
Relevant for Exams:
