The downstream speed of a boat is 6 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream is 10:3. Find the total time taken by boat to travel 39 km downstream and 28 km upstream?
Let the speed of boat in still water be x km/hr and that of stream be y km/hr. ATQ, ⇒ (x + y) – (x – y) = 6 ⇒ y = 3 km/hr ⇒ x = 3 × 10/3 = 10 km/hr Required time = [39/(10+3)] + [28/(10−3)] = 7 hr
Calculate Disposable income:
Consumption (C) = 300
Investment (I) = 50
Government purchases (G) = 70
Government transfer pay...
Opportunity cost version of comparative cost advantage doctrine was introduced by
Ability to pay principle is related with?
The credit manager at a Departmental store collects data on 100 of her customers. Of the 60 men, 40 have credit cards (C). Of the 40 women, 30...
When we say that the estimator is BLUE. What does best signify here?
Which of the following statements is NOT correct in the context of quantity theory of money?
Market failure is the inability of
Which of the following is correct?
If factor cost is greater than Market price, then it means that:
Amber, Blue and Green boxes is related to which sector as per WTO terminology ?
