Question
Two trains of equal lengths take 20 seconds and 30
seconds respectively to cross a telegraph post. If the length of each train be 240 metres, in what time will they cross each other travelling in opposite direction?Solution
Speed of the first train = [240/20] m/sec = 12 m/sec Speed of the second train = [240/30] m/sec = 8 m/sec Speed = (12 + 8) m/sec = 20 m/sec Required time = (240 + 240)/20 sec = 24 sec
When a firm’s decision to produce decreases the wellbeing of others, but the firm does not compensate those others. It is a case of______.
...If a constant 60 is subtracted from each of the values of X and Y, then the regression coefficient is
Which of the following is a correct grouping of dimensions and indicators used in NITI Aayog’s Multidimensional Poverty Index (MPI)?
In an oligopoly, firms consider the reactions of rival firms before changing their output or price. This is known as:
Refer the following table. How many students scored up to 40 marks?
Which of the following is a property of a normal distribution?
What do you mean by ‘under conditions of a perfect competition in the product market’?
If elasticity is ‘e’, and price of the product is B, MR=?
On a graph for a monopolist or monopolistic competitor, which of the following curves coincide?
Objective function was given as Z= 4X+5Y. Four extreme points were given as (0,4), (5,0), (3,3), (3,4). Find at which point function is maximized.
