Question
The speed of the stream is 10 km/h. Boat ‘A’ covers
60 km distance against the stream in 6 hours and boat ‘B’ covers 120 km distance against the stream in 4 hours. The speed of boat ‘B’ in still water is how much percent of the speed of boat ‘A’ in still water?Solution
Speed of boat ‘A’ upstream = 60/6 = 10 km/h Speed of boat ‘B’ upstream = 120/4 = 30 km/h Speed of the boat ‘A’ in still water = 10 + 10 = 20 km/h Speed of the boat ‘B’ in still water = 30 + 10 = 40 km/h Required percentage = (40/20) × 100 = 200%
Refer the following table. How many students scored up to 40 marks?
From the following, who first examined the close negative relationship between the unemployment rate and the output ratio?
For Cobb-Douglas production function the elasticity of substitution is
Which of the following is NOT a postulate of the Classical Model of full-employment equilibrium?
Calculate Disposable income:
Consumption (C) = 300
Investment (I) = 50
Government purchases (G) = 70
Government transfer pay...
The data about sales and advertisement expenditure of a firm is given below
The Coefficient of Alienation can be determined by
New loans made = 1000. Fractional reserve ratio is 1/3, by how much deposits will grow?
If the sum of the product of the deviation of X and Y from their means is zero, the correlation coefficient between X and Y is:
If it rains a dealer in raincoats can earn Rs. 400 per day. If it is a fair day he loses Rs. 80 per day. What is his expectation if the probab...
Relevant for Exams:
