Question
A man can row 25/2 km an hour in still water and he
finds that it takes him thrice as long as long to row down the river. The rate of stream is:Solution
Let the rate of stream be x km/hr Then, Speed of downstream = [(25/2) + x] km/hr Speed of upstream = [(25/2) - x] km/hr [(25/2) + x] = 3 [(25/2) - x] (25/2) + x = (75/2) - x 4x = 25 x = 6.25 km/hr
A two-person zero-sum game means that theÂ
Consider an economy described by the following equations:
C = 100 + 0.6 ∗ (Y − T) (consumption function)
I = 200 − 10...
Refer to the above table. Calculate th...
A firm operating in a perfectly competitive market has a short-run total cost function given by TC(Q)=20+2Q+0.5Q2. If the market price is P=10, what is ...
If X(bar) = 25, Y(bar) = 120, bxy = 2. Find the value of X when Y=130?
An increase in the expected rate of inflation
Which of the following tests use rank sums?
Suppose A consumes only 2 goods X &Y such that A exhausts all the income. Ceteris Paribus, if the price of X rises and the price elasticity of X is 1.2 ...
Given x=2y+4 and y=kx+6 are the lines of regression of x on y and y on x respectively. Find the value of k if value of r is 0.5.
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