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Let 2nd number be 'x' Therefore, 1st number = 2x And, 3rd number = 2 X 2x = 4x Therefore, x + 2x + 4x = (21 X 3) = 63 ATQ; 7x = 63 Or, x = 9 Required sum = 2x + 4x = 6x = 6 X 9 = 54 Hence, option a.
Which of the following is not correct?
What is the standard deviation of first n natural numbers?
Suppose the following bilateral spot exchange rates are being quoted for the Danish krone (DKK), the US dollar (US$) and the euro (€):
US$/€ ...
The Phillips curve shows the trade-off between ----- and -----?
In the context of the Classical model, which of the following would cause a shift in the long-run aggregate supply curve (LRAS)?
Which of the following functions has a degree of homogeneity not equal to unity?
Sonia has decided to always spend one-tenth of her income on shoes. Her income and price elasticities of demand for shoes are
In the basic Solow model of growth
In a study examining the relationship between hours of study (X) and test scores (Y) of students, a bivariate regression analysis was conducted. The fol...
Assertion (A): There is a natural tendency to collude under oligopoly.
Reason (R) : Inter-dependence of firms in oligopolisti...