Question
Pipe 'A' takes 10 minutes to fill half the tank. Pipe
'B' is 2 times more efficient than pipe 'A'. Find % of tank filled in 5 minutes by both.Solution
Full tank time = 10 × 2 = 20 minutes A’s efficiency = x units/min Tank capacity = 20x units B’s efficiency = 2x units/min Work in 5 minutes = (x + 2x) × 5 = 15x units Percentage = (15x / 20x) × 100 = 75%
For an economy, if C = 400 + 0.8Yd, Yd = Y − T, T = 300 + 0.2Y , find MPC.Â
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In the standard IS-LM model, an increase in Government spending (G) without changing taxes has
1.      C = 50 + 0.5 Yd, I = 100 -50i, T=G=100
where, Yd is disposable income, T and G are taxes and government expenditure respectivel...
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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.
List – I
<... The demand function for a good is X = 5000 – 10Px + 15Py + 0.2Y, where in Px is the price of X, Py is the price of another good and Y is the incom...
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