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Solution: Let A's age be y years and B's age be y + 4 years. According to the given condition, y + (y + 4) = 3x + 10 2y + 4 = 3x + 10 2y = 3x + 6 y = (3x + 6) / 2 5 years ago, the ratio of their ages was 4:5. So, (y - 5) / (y + 4 - 5) = 4/5 (y - 5) / (y - 1) = 4/5 Cross-multiply and solve for y: 5(y - 5) = 4(y - 1) 5y - 25 = 4y - 4 y = 21 Present age of A = 21 years
Consider a closed economy wherein
C = 0.8 Yd , t = 0.25 , I = 900 – 50i , G = 800, L = 0.25 Y – 62.5i , M/P = 500
Where in Yd = Di...
The regression equation is Y = β1X1i + ui and following is the sample,
_____________________Effect is an effect that describes the relationship between an increase in productivity, higher exchange rates and an increase in w...
For the growth of the Indian economy, which among the following should NOT be encouraged?
In a multiple regression model, the Durbin-Watson test statistic is 1.3, while the critical lower and upper values are 1.5 and 1.7 respectively. This im...
Which of the statement is TRUE considering the Central problems of an economy?
Balance of Trade is measured as:
Which of the following pairs of goods is/are likely to have a positive cross price elasticity of demand?
(1) Cars and Petrol
(2) Tea ...
A and B constitute a random sample of size 2 from normal population with the mean µ and variance α2, find the efficiency of (A+2B)/3
The National Rural Livelihood Mission, a measure adopted by the Government to alleviate poverty, is also known as________.
